The document discusses the anatomy, histology, diseases, and clinical features of the conjunctiva. It can be summarized as follows:
1) The conjunctiva has three parts - palpebral, forniceal, and bulbar. Microscopically it contains epithelium, stroma, and mucin secretors like goblet cells.
2) Common conjunctival diseases include bacterial, viral, allergic, and chemical conjunctivitis. Bacterial conjunctivitis presents with redness and discharge and usually resolves within 10-14 days with antibiotics. Viral conjunctivitis causes watering and photophobia.
3) Other diseases discussed are trachoma
The document provides information about the conjunctiva and conjunctivitis (pink eye). It defines the conjunctiva as the thin membrane that covers the eye and inner eyelid. It has two segments: the bulbar conjunctiva covers the eyeball, while the palpebral conjunctiva covers the inner eyelid. Conjunctivitis is inflammation of the conjunctiva that can be caused by allergies, bacteria, viruses, chemicals, or trachoma. Symptoms include redness, discharge, irritation and blurred vision. Treatment depends on the cause but may include antibiotics, antivirals, or surgery. Good hygiene and sanitation can help prevent infectious types.
This document discusses bacterial corneal ulcers, including their definition, causative agents, pathogenesis, symptoms, signs, investigations, differential diagnosis, risk factors, complications, and treatment. The main points are:
Bacterial corneal ulcers are discontinuations of the normal corneal epithelium caused by bacterial organisms and surrounding corneal tissue necrosis. Pseudomonas aeruginosa is a common causative agent and can cause rapidly progressive stromal necrosis. Investigation involves a detailed history, slit lamp exam, gram stain, and culture/sensitivity testing. Treatment aims to eliminate bacteria and control infection to prevent complications like perforation, and involves topical antibiotics, cycloplegics, steroids, and occasionally periocular antibiotics.
Fungal keratitis is difficult to diagnose and treat. Common causative fungi include Aspergillus, Candida, and Fusarium. Diagnosis involves potassium hydroxide wet mount, stains like Gram or Grocott's, and culture. Topical natamycin is first-line treatment but systemic antifungals like voriconazole may be needed for severe cases. Management also includes frequent debridement and potentially therapeutic penetrating keratoplasty for non-responsive or advanced cases. Prognosis depends on factors like ulcer size and presence of hypopyon.
The document discusses the anatomy and physiology of the lacrimal system and tear film. It describes the main structures of the lacrimal apparatus including the lacrimal gland, accessory lacrimal glands, lacrimal passages, puncta, canaliculi, lacrimal sac, and nasolacrimal duct. It discusses tear film layers, secretion, and functions. It also summarizes common lacrimal system disorders like dry eye, dacryocystitis, epiphora, dacryoadenitis and their signs, symptoms, etiologies, and treatments. Surgical procedures for these conditions like dacryocystorhinostomy are also briefly outlined.
1. Fungal and viral keratitis are common causes of corneal infection and blindness in tropical and developing countries. Common fungal causes are yeasts like Candida and filamentous fungi like Fusarium and Aspergillus. Predisposing factors include chronic ocular diseases, contact lens wear, and immunosuppression.
2. Clinical features of fungal keratitis include pain, discharge, infiltrates that can progress rapidly, leading to thinning and necrosis. Treatment involves topical and sometimes systemic antifungals.
3. Herpes simplex virus is a common cause of viral keratitis. It can cause epithelial keratitis with dendritic ulcers or stromal keratitis with disciform infiltr
This document discusses uveitis, including its classification, description, causes, signs, and treatment. Uveitis can be classified anatomically by the area of the eye affected (anterior, intermediate, posterior, panuveitis) and pathologically (granulomatous vs. non-granulomatous). Common causes include infectious etiologies like toxoplasmosis as well as autoimmune diseases. Clinical examination findings and investigations help determine the underlying cause and guide treatment, which typically involves topical and sometimes systemic corticosteroids.
The document provides information about the conjunctiva and conjunctivitis (pink eye). It defines the conjunctiva as the thin membrane that covers the eye and inner eyelid. It has two segments: the bulbar conjunctiva covers the eyeball, while the palpebral conjunctiva covers the inner eyelid. Conjunctivitis is inflammation of the conjunctiva that can be caused by allergies, bacteria, viruses, chemicals, or trachoma. Symptoms include redness, discharge, irritation and blurred vision. Treatment depends on the cause but may include antibiotics, antivirals, or surgery. Good hygiene and sanitation can help prevent infectious types.
This document discusses bacterial corneal ulcers, including their definition, causative agents, pathogenesis, symptoms, signs, investigations, differential diagnosis, risk factors, complications, and treatment. The main points are:
Bacterial corneal ulcers are discontinuations of the normal corneal epithelium caused by bacterial organisms and surrounding corneal tissue necrosis. Pseudomonas aeruginosa is a common causative agent and can cause rapidly progressive stromal necrosis. Investigation involves a detailed history, slit lamp exam, gram stain, and culture/sensitivity testing. Treatment aims to eliminate bacteria and control infection to prevent complications like perforation, and involves topical antibiotics, cycloplegics, steroids, and occasionally periocular antibiotics.
Fungal keratitis is difficult to diagnose and treat. Common causative fungi include Aspergillus, Candida, and Fusarium. Diagnosis involves potassium hydroxide wet mount, stains like Gram or Grocott's, and culture. Topical natamycin is first-line treatment but systemic antifungals like voriconazole may be needed for severe cases. Management also includes frequent debridement and potentially therapeutic penetrating keratoplasty for non-responsive or advanced cases. Prognosis depends on factors like ulcer size and presence of hypopyon.
The document discusses the anatomy and physiology of the lacrimal system and tear film. It describes the main structures of the lacrimal apparatus including the lacrimal gland, accessory lacrimal glands, lacrimal passages, puncta, canaliculi, lacrimal sac, and nasolacrimal duct. It discusses tear film layers, secretion, and functions. It also summarizes common lacrimal system disorders like dry eye, dacryocystitis, epiphora, dacryoadenitis and their signs, symptoms, etiologies, and treatments. Surgical procedures for these conditions like dacryocystorhinostomy are also briefly outlined.
1. Fungal and viral keratitis are common causes of corneal infection and blindness in tropical and developing countries. Common fungal causes are yeasts like Candida and filamentous fungi like Fusarium and Aspergillus. Predisposing factors include chronic ocular diseases, contact lens wear, and immunosuppression.
2. Clinical features of fungal keratitis include pain, discharge, infiltrates that can progress rapidly, leading to thinning and necrosis. Treatment involves topical and sometimes systemic antifungals.
3. Herpes simplex virus is a common cause of viral keratitis. It can cause epithelial keratitis with dendritic ulcers or stromal keratitis with disciform infiltr
This document discusses uveitis, including its classification, description, causes, signs, and treatment. Uveitis can be classified anatomically by the area of the eye affected (anterior, intermediate, posterior, panuveitis) and pathologically (granulomatous vs. non-granulomatous). Common causes include infectious etiologies like toxoplasmosis as well as autoimmune diseases. Clinical examination findings and investigations help determine the underlying cause and guide treatment, which typically involves topical and sometimes systemic corticosteroids.
Uveitis is an interesting disease of the with such a varied and diverse pathogenesis, various systemic causes and Dangerous complications in relation to the eye which makes it difficult and challenging to treat in a proper way. I hope this share will help.
This document provides information on diseases of the conjunctiva. It discusses the various types of conjunctivitis including bacterial, viral, allergic, and trachoma. It describes the clinical features, causes, treatment, and complications of acute bacterial conjunctivitis, gonococcal conjunctivitis, ophthalmia neonatorum, chronic bacterial conjunctivitis, angular bacterial conjunctivitis, vernal keratoconjunctivitis, pinguecula, and pterygium. The document is an extensive overview of conjunctival diseases and their management.
This document discusses various viral and protozoal causes of corneal ulcers, including herpes simplex virus (HSV), herpes zoster virus, and acanthamoeba. It describes the etiology, clinical features, diagnosis, and treatment of these conditions. Primary and recurrent HSV keratitis present with punctate epithelial lesions and dendritic ulcers. Herpes zoster ophthalmicus causes vesicular skin lesions following reactivation of varicella zoster virus in the trigeminal ganglion. Acanthamoeba keratitis is an opportunistic infection associated with contact lens use that presents with epithelial lesions and stromal infiltrates. Treatment involves antiviral medications for viruses and anti-am
The document describes the anatomy, histology, blood supply, lymphatic drainage and nerve supply of the conjunctiva. It discusses various types of conjunctivitis including infective, allergic, irritative, traumatic and those associated with skin and mucosal diseases. Specific types described include acute catarrhal, acute purulent, serous, chronic simple, angular and membranous conjunctivitis.
This document discusses fungal corneal ulcers. It begins by describing the signs and symptoms of fungal ulcers, including pain, redness, defective vision, lid edema, and corneal opacity staining with fluorescein. Diagnosis involves smears, cultures and microscopy to identify causative fungi. Common fungi include Fusarium, Aspergillus, and Candida. Treatment involves topical natamycin or voriconazole drops. Prognosis includes potential complications like scar formation, astigmatism, perforation and fistula formation. Close monitoring is needed due to the difficulty treating fungal infections.
Fungal corneal ulcers are common, caused mainly by Aspergillus in India. Risk factors include ocular trauma, contact lens use, pre-existing eye conditions, and systemic immunosuppression. Diagnosis involves corneal scrapings, cultures, and stains showing fungal hyphae or spores. Treatment consists of topical natamycin or amphotericin B, sometimes with adjunctive debridement, intracameral/intracorneal injections, or therapeutic keratoplasty for severe cases. Systemic antifungals may also be used for extensive infections.
Mooren's ulcer is a rare autoimmune condition characterized by a chronic, painful peripheral corneal ulcer. It is more common in males and older individuals. Treatment involves a stepwise approach starting with topical steroids, then conjunctival resection to remove inflammatory cells, followed by systemic immunosuppressants if needed. Later stages may require additional surgeries like lamellar keratectomy or keratoplasty to promote healing and rehabilitation of the cornea. The goals are to arrest the destructive process and promote reepithelialization of the corneal surface.
Corneal opacity occurs when the normally clear cornea becomes scarred, clouding vision. It has many causes like infection, injury, vitamin A deficiency, measles, contact lens overuse. Symptoms include decreased vision, eye pain or redness. There are different types classified by opacity density and location. Treatment options include eye drops, surgery like phototherapeutic keratectomy, or cornea transplant if dense opacity. Prevention involves eye protection and proper contact lens care. Corneal disease is a major cause of blindness in India, affecting millions.
Dr. TP Chhangte discusses anterior uveitis, including its definition, epidemiology, classification, pathology, clinical features, complications, and differential diagnosis. Some key points:
- Anterior uveitis is inflammation of the iris and anterior part of the ciliary body. Its prevalence has been increasing and it commonly affects people aged 20-50.
- Uveitis can be classified anatomically, clinically, etiologically, and pathologically. The anatomical classification divides uveitis into anterior, intermediate, posterior, and panuveitis based on location of inflammation.
- Clinical features of anterior uveitis include eye pain, redness, photophobia, and decreased vision. On examination
This presentation describes the background of the cornea and the corneal diseases in general, also it describes in detailed manner how to manage the corneal ulcer with its different causes
Marginal catarrhal ulcers are superficial ulcers near the eye that often affect older people. They are thought to be caused by a hypersensitivity reaction to toxins from Staphylococcus bacteria during chronic staphylococcal blepharoconjunctivitis. Symptoms include mild irritation, pain, light sensitivity, and watering. Treatment involves short-term corticosteroid drops combined with antibiotic therapy to treat the ulcer and any associated conjunctivitis or blepharitis, in order to prevent recurrence of the condition.
The document discusses diseases of the sclera, including episcleritis and scleritis. Episcleritis is a benign inflammation of the outer layer of the eyeball that comes in two forms - simple and nodular. Scleritis is a deeper inflammation that involves the entire thickness of the sclera. Scleritis can be immune-mediated, infectious, or necrotizing. Treatment depends on the type but may include topical steroids, NSAIDs, or systemic steroids and immunosuppressive drugs.
Viral keratitis is commonly caused by herpes simplex virus types 1 and 2 and varicella zoster virus. HSV keratitis typically presents as dendritic ulcers or geographic ulcers on the cornea. It can also cause stromal keratitis. Varicella zoster virus causes herpes zoster infection which presents with a painful rash that follows dermatomal patterns, and can also lead to keratitis. Adenovirus is another common cause and presents as punctate epithelial keratitis that may develop into nummular opacities. Treatment involves topical antivirals and steroids depending on the type and severity of infection.
The sclera is the dense outer layer of the eyeball. It can develop two types of inflammation - episcleritis and scleritis. Episcleritis is more common and self-limiting, often affecting young adults, while scleritis is more severe and can be associated with underlying systemic diseases. Scleritis presents with redness and swelling of the sclera and is classified as anterior or posterior depending on location. Imaging like ultrasound and CT are useful for diagnosing posterior scleritis. Treatment involves topical or oral steroids, with immunosuppressants used for severe or resistant cases. Complications can include scleral thinning and staphylomas if left untreated.
2. This document presents an overview of red eye conditions and their management. It identifies signs requiring urgent referral, such as absent pupil response or corneal damage. Common differentials discussed include
fungal / mycotic corneal ulcer power point presentation for O.A 2nd year stud...Vinitkumar MJ
Belong suborder Acanthopodina and the genus Acanthamoeba
• Family of free-living cyst-forming protozoans that are ubiquitous in air, soil, dust and water.
• 11 species of which A. Castellanii and A. polyphaga are the most common in keratitis
• Life cycle consist of motile trophozoite and cyst dormant stage
CONJUNCTIVA: ANATOMY , PHYSIOLOGY, SYMPTOMATOLOGY AND CLASSIFICATION Pranay Shinde DNB Resident Deen Dayal Upadhyay Hospital,New Delhi
2. ANATOMY It is the mucous membrane covering the under surface of the lids and anterior part of the eyeball upto the cornea.
3. Parts of conjunctiva • Palpebral; covering the lids—firmly adherent. • Forniceal; covering the fornices—loose—thrown into folds. • Bulbar; covering the eyeball—loosely attached except at limbus.
4. Palpebral conjunctiva • Subtarsal sulcus 2mm from posterior edge of the lid margin. • Richly vascular. • Extremely thin. • Strongly bound to the tarsal plate.
5. Palpebral conjunctiva is subdivided into three parts: 1)Marginal 2)Tarsal 3)Orbital
6. Conjunctival fornices • Transitional region between palpebral and bulbar conjunctivae. • Superior fornix 10 mm from limbus. • Inferior fornix 8 mm from limbus. • Lateral fornix 14mm from limbus. • Medially absent. • Ducts of lacrimal glands open into lateral part of superior fornix.
This document discusses Herpes simplex keratitis, which is caused by the herpes simplex virus (HSV). It outlines the different types of herpetic eye disease including epithelial keratitis, disciform keratitis, necrotizing stromal keratitis, and neurotrophic ulceration. Epithelial keratitis presents with redness, photophobia, and a linear-branching ulcer. Disciform keratitis causes blurred vision and stromal edema. Necrotizing stromal keratitis results in stromal necrosis and melting. Neurotrophic ulceration is caused by corneal anesthesia. Treatment involves antiviral medications like acyclovir as well as steroids. Long term antiviral pro
This document discusses endophthalmitis, including its definition, classification, etiology, clinical presentation, diagnosis, and treatment approaches. It classifies endophthalmitis as infective or non-infective, exogenous or endogenous, and describes the most common causative agents. It provides details on clinical evaluation, diagnostic testing, medical and surgical management strategies, and prevention. It also summarizes key findings from the Endophthalmitis Vitrectomy Study regarding the role of vitrectomy and intravenous antibiotics in post-operative endophthalmitis.
The conjunctiva is the transparent mucous membrane that covers the sclera of the eye and lines the inner surface of the eyelids. It has three parts - palpebral, forniceal, and bulbar. The conjunctiva is prone to infectious, inflammatory, allergic, neoplastic, and degenerative diseases. Common infectious causes are bacterial and viral conjunctivitis. Allergic conjunctivitis is usually IgE-mediated and presents with itchy, watery eyes and papillae. Neoplasms include benign growths like papillomas and malignant tumors. Degenerative conditions involve pinguecula and pterygium, which are growths on the conjunctiva.
The conjunctiva has three parts - palpebral tarsal, forniceal, and bulbar. It has an epithelial layer and stromal layer. There are three types of mucin secretors - goblet cells, crypts of Henle, and glands of Manz. Clinical features of conjunctival diseases include type of discharge, conjunctival injection, conjunctival reaction type, and presence of pseudomembranes. Bacterial conjunctivitis presents with redness, discharge, and is usually self-limiting while being treated with antibiotics. Adenoviral conjunctivitis can cause pharyngoconjunctival fever or epidemic keratoconjunctivitis and is highly cont
Uveitis is an interesting disease of the with such a varied and diverse pathogenesis, various systemic causes and Dangerous complications in relation to the eye which makes it difficult and challenging to treat in a proper way. I hope this share will help.
This document provides information on diseases of the conjunctiva. It discusses the various types of conjunctivitis including bacterial, viral, allergic, and trachoma. It describes the clinical features, causes, treatment, and complications of acute bacterial conjunctivitis, gonococcal conjunctivitis, ophthalmia neonatorum, chronic bacterial conjunctivitis, angular bacterial conjunctivitis, vernal keratoconjunctivitis, pinguecula, and pterygium. The document is an extensive overview of conjunctival diseases and their management.
This document discusses various viral and protozoal causes of corneal ulcers, including herpes simplex virus (HSV), herpes zoster virus, and acanthamoeba. It describes the etiology, clinical features, diagnosis, and treatment of these conditions. Primary and recurrent HSV keratitis present with punctate epithelial lesions and dendritic ulcers. Herpes zoster ophthalmicus causes vesicular skin lesions following reactivation of varicella zoster virus in the trigeminal ganglion. Acanthamoeba keratitis is an opportunistic infection associated with contact lens use that presents with epithelial lesions and stromal infiltrates. Treatment involves antiviral medications for viruses and anti-am
The document describes the anatomy, histology, blood supply, lymphatic drainage and nerve supply of the conjunctiva. It discusses various types of conjunctivitis including infective, allergic, irritative, traumatic and those associated with skin and mucosal diseases. Specific types described include acute catarrhal, acute purulent, serous, chronic simple, angular and membranous conjunctivitis.
This document discusses fungal corneal ulcers. It begins by describing the signs and symptoms of fungal ulcers, including pain, redness, defective vision, lid edema, and corneal opacity staining with fluorescein. Diagnosis involves smears, cultures and microscopy to identify causative fungi. Common fungi include Fusarium, Aspergillus, and Candida. Treatment involves topical natamycin or voriconazole drops. Prognosis includes potential complications like scar formation, astigmatism, perforation and fistula formation. Close monitoring is needed due to the difficulty treating fungal infections.
Fungal corneal ulcers are common, caused mainly by Aspergillus in India. Risk factors include ocular trauma, contact lens use, pre-existing eye conditions, and systemic immunosuppression. Diagnosis involves corneal scrapings, cultures, and stains showing fungal hyphae or spores. Treatment consists of topical natamycin or amphotericin B, sometimes with adjunctive debridement, intracameral/intracorneal injections, or therapeutic keratoplasty for severe cases. Systemic antifungals may also be used for extensive infections.
Mooren's ulcer is a rare autoimmune condition characterized by a chronic, painful peripheral corneal ulcer. It is more common in males and older individuals. Treatment involves a stepwise approach starting with topical steroids, then conjunctival resection to remove inflammatory cells, followed by systemic immunosuppressants if needed. Later stages may require additional surgeries like lamellar keratectomy or keratoplasty to promote healing and rehabilitation of the cornea. The goals are to arrest the destructive process and promote reepithelialization of the corneal surface.
Corneal opacity occurs when the normally clear cornea becomes scarred, clouding vision. It has many causes like infection, injury, vitamin A deficiency, measles, contact lens overuse. Symptoms include decreased vision, eye pain or redness. There are different types classified by opacity density and location. Treatment options include eye drops, surgery like phototherapeutic keratectomy, or cornea transplant if dense opacity. Prevention involves eye protection and proper contact lens care. Corneal disease is a major cause of blindness in India, affecting millions.
Dr. TP Chhangte discusses anterior uveitis, including its definition, epidemiology, classification, pathology, clinical features, complications, and differential diagnosis. Some key points:
- Anterior uveitis is inflammation of the iris and anterior part of the ciliary body. Its prevalence has been increasing and it commonly affects people aged 20-50.
- Uveitis can be classified anatomically, clinically, etiologically, and pathologically. The anatomical classification divides uveitis into anterior, intermediate, posterior, and panuveitis based on location of inflammation.
- Clinical features of anterior uveitis include eye pain, redness, photophobia, and decreased vision. On examination
This presentation describes the background of the cornea and the corneal diseases in general, also it describes in detailed manner how to manage the corneal ulcer with its different causes
Marginal catarrhal ulcers are superficial ulcers near the eye that often affect older people. They are thought to be caused by a hypersensitivity reaction to toxins from Staphylococcus bacteria during chronic staphylococcal blepharoconjunctivitis. Symptoms include mild irritation, pain, light sensitivity, and watering. Treatment involves short-term corticosteroid drops combined with antibiotic therapy to treat the ulcer and any associated conjunctivitis or blepharitis, in order to prevent recurrence of the condition.
The document discusses diseases of the sclera, including episcleritis and scleritis. Episcleritis is a benign inflammation of the outer layer of the eyeball that comes in two forms - simple and nodular. Scleritis is a deeper inflammation that involves the entire thickness of the sclera. Scleritis can be immune-mediated, infectious, or necrotizing. Treatment depends on the type but may include topical steroids, NSAIDs, or systemic steroids and immunosuppressive drugs.
Viral keratitis is commonly caused by herpes simplex virus types 1 and 2 and varicella zoster virus. HSV keratitis typically presents as dendritic ulcers or geographic ulcers on the cornea. It can also cause stromal keratitis. Varicella zoster virus causes herpes zoster infection which presents with a painful rash that follows dermatomal patterns, and can also lead to keratitis. Adenovirus is another common cause and presents as punctate epithelial keratitis that may develop into nummular opacities. Treatment involves topical antivirals and steroids depending on the type and severity of infection.
The sclera is the dense outer layer of the eyeball. It can develop two types of inflammation - episcleritis and scleritis. Episcleritis is more common and self-limiting, often affecting young adults, while scleritis is more severe and can be associated with underlying systemic diseases. Scleritis presents with redness and swelling of the sclera and is classified as anterior or posterior depending on location. Imaging like ultrasound and CT are useful for diagnosing posterior scleritis. Treatment involves topical or oral steroids, with immunosuppressants used for severe or resistant cases. Complications can include scleral thinning and staphylomas if left untreated.
2. This document presents an overview of red eye conditions and their management. It identifies signs requiring urgent referral, such as absent pupil response or corneal damage. Common differentials discussed include
fungal / mycotic corneal ulcer power point presentation for O.A 2nd year stud...Vinitkumar MJ
Belong suborder Acanthopodina and the genus Acanthamoeba
• Family of free-living cyst-forming protozoans that are ubiquitous in air, soil, dust and water.
• 11 species of which A. Castellanii and A. polyphaga are the most common in keratitis
• Life cycle consist of motile trophozoite and cyst dormant stage
CONJUNCTIVA: ANATOMY , PHYSIOLOGY, SYMPTOMATOLOGY AND CLASSIFICATION Pranay Shinde DNB Resident Deen Dayal Upadhyay Hospital,New Delhi
2. ANATOMY It is the mucous membrane covering the under surface of the lids and anterior part of the eyeball upto the cornea.
3. Parts of conjunctiva • Palpebral; covering the lids—firmly adherent. • Forniceal; covering the fornices—loose—thrown into folds. • Bulbar; covering the eyeball—loosely attached except at limbus.
4. Palpebral conjunctiva • Subtarsal sulcus 2mm from posterior edge of the lid margin. • Richly vascular. • Extremely thin. • Strongly bound to the tarsal plate.
5. Palpebral conjunctiva is subdivided into three parts: 1)Marginal 2)Tarsal 3)Orbital
6. Conjunctival fornices • Transitional region between palpebral and bulbar conjunctivae. • Superior fornix 10 mm from limbus. • Inferior fornix 8 mm from limbus. • Lateral fornix 14mm from limbus. • Medially absent. • Ducts of lacrimal glands open into lateral part of superior fornix.
This document discusses Herpes simplex keratitis, which is caused by the herpes simplex virus (HSV). It outlines the different types of herpetic eye disease including epithelial keratitis, disciform keratitis, necrotizing stromal keratitis, and neurotrophic ulceration. Epithelial keratitis presents with redness, photophobia, and a linear-branching ulcer. Disciform keratitis causes blurred vision and stromal edema. Necrotizing stromal keratitis results in stromal necrosis and melting. Neurotrophic ulceration is caused by corneal anesthesia. Treatment involves antiviral medications like acyclovir as well as steroids. Long term antiviral pro
This document discusses endophthalmitis, including its definition, classification, etiology, clinical presentation, diagnosis, and treatment approaches. It classifies endophthalmitis as infective or non-infective, exogenous or endogenous, and describes the most common causative agents. It provides details on clinical evaluation, diagnostic testing, medical and surgical management strategies, and prevention. It also summarizes key findings from the Endophthalmitis Vitrectomy Study regarding the role of vitrectomy and intravenous antibiotics in post-operative endophthalmitis.
The conjunctiva is the transparent mucous membrane that covers the sclera of the eye and lines the inner surface of the eyelids. It has three parts - palpebral, forniceal, and bulbar. The conjunctiva is prone to infectious, inflammatory, allergic, neoplastic, and degenerative diseases. Common infectious causes are bacterial and viral conjunctivitis. Allergic conjunctivitis is usually IgE-mediated and presents with itchy, watery eyes and papillae. Neoplasms include benign growths like papillomas and malignant tumors. Degenerative conditions involve pinguecula and pterygium, which are growths on the conjunctiva.
The conjunctiva has three parts - palpebral tarsal, forniceal, and bulbar. It has an epithelial layer and stromal layer. There are three types of mucin secretors - goblet cells, crypts of Henle, and glands of Manz. Clinical features of conjunctival diseases include type of discharge, conjunctival injection, conjunctival reaction type, and presence of pseudomembranes. Bacterial conjunctivitis presents with redness, discharge, and is usually self-limiting while being treated with antibiotics. Adenoviral conjunctivitis can cause pharyngoconjunctival fever or epidemic keratoconjunctivitis and is highly cont
The conjunctiva is a thin, semi-transparent mucous membrane that covers the inner surface of the eyelids and the outer surface of the sclera. It has three parts: the palpebral conjunctiva covers the inner eyelid, the forniceal conjunctiva is in the eyelid folds, and the bulbar conjunctiva covers the eyeball. The conjunctiva contains goblet cells that secrete mucus and has blood vessels for nutrition and lymphatic drainage. It helps maintain the tear film and prevents microbes from entering the eye.
The document provides information on the anatomy, physiology, symptomatology, and classification of the conjunctiva. It discusses the three layers of the conjunctiva - palpebral, forniceal, and bulbar. The palpebral conjunctiva covers the inner surface of the eyelids and is firmly attached. The bulbar conjunctiva loosely covers the eyeball except at the limbus. Symptoms include redness, irritation, discharge, and photophobia. Signs include type of discharge, presence of follicles or papillae, pseudomembranes, and lymphadenopathy. Laboratory tests can identify viral and bacterial causes of conjunctivitis.
Comparative Study Of Pterygium Excision With Conjunctival Autograft,Wet Amnio...Dr. Jagannath Boramani
Presenter: Dr. Pavitra K. Patel, Co-authors: Dr. Sachin Daigavane,Dr. Mala Kamble, Department of Ophthalmology, Jawarharlal Nehru Medical College & Acharya Vinoba Bhave Rural Hospital, Sawangi, Wardha.
GEMC - Infectious Diseases - Skin Infections - for NursesOpen.Michigan
The document provides information about skin infections caused by lice. It discusses the three main types of lice that affect humans: head lice, body lice, and pubic lice. Symptoms of lice infections include itching. Treatment involves carefully checking the hair and body for lice and nits, using medicated shampoo or cream to kill the lice, combing nits out of the hair, and washing clothing and bedding in hot water. Proper treatment and repeat treatments may be needed to fully eliminate lice.
This document provides information on various conditions related to the eye. It begins by discussing unilateral red eye in a 25-year-old female, noting that ciliary injection is a characteristic of intraocular pathology. It then covers topics like uveitis and its classification by anatomical site of involvement. Other sections discuss keratic precipitates, aqueous flare, conjunctival reactions including follicles and papillae, as well as conditions like chalazion, pterygium, and various forms of keratitis. Complications of conditions like ulcerative keratitis and scleritis are also outlined. Differential diagnoses are provided for clinical cases.
Layers of skin of the Eye Lids, Eye Lashes, Eye Lid Pathology, Anatomy of Con...Nina Ko
This document describes the anatomy and common pathologies of the eyelids. It discusses the layers of the eyelid including the epidermis, dermis and subcutaneous layer. It describes the meibomian glands, glands of Zeis and glands of Moll. Common infections like hordeolum, chalazion and blepharitis are summarized. Anatomical deformities including entropion, ectropion, trichiasis and distichiasis are covered. Finally, the document outlines common benign and malignant tumors of the eyelids such as papillomas, xanthelasma, hemangiomas and basal cell carcinoma.
The document is an atlas of ophthalmology focusing on the eyelids, lacrimal drainage system, conjunctiva, and dry eye. It contains detailed diagrams and photos of normal anatomy, various pathological conditions, and surgical techniques. The images show features like entropion, ectropion, ptosis, dacryocystitis, bacterial and viral conjunctivitis, trachoma, vernal keratoconjunctivitis, and dry eye tear film layers. The atlas aims to provide visual education on eye diseases and procedures for medical students and ophthalmologists.
This document provides an overview of the anatomy of the conjunctiva and classification of conjunctivitis. It describes the parts and structure of the conjunctiva, including its epithelium, adenoid and fibrous layers. It also details the glands, blood supply, nerves and types of conjunctivitis. The conjunctiva has palpebral, bulbar, and forniceal regions and contains goblet cells, glands of Krause and glands of Wolfring. Conjunctivitis can be infective from bacteria, viruses, or chlamydia. It can also be allergic, cicatricial, or toxic in nature.
This document discusses pterygium, a non-cancerous growth of fleshy tissue on the eye. It begins by defining pterygium and describing its characteristics and causes. It then discusses risk factors like UV exposure, prevalence based on age, sex and geography. Clinical presentation and staging is explained. Histopathology and recurrence are also covered. Treatment involves surgery like conjunctival autografting along with preventative measures and adjuvants to reduce recurrence. Complications and outcomes of different techniques are compared.
The document summarizes the anatomy and physiology of the eye. It describes the structures of the eye including the orbit, extraocular muscles, eyelids, lacrimal apparatus, uveal tract, retina, optic nerve and blood supply. Key anatomical landmarks are also outlined.
Follicular conjunctivitis is inflammation of the conjunctiva associated with hypertrophic lymphoid tissue appearing as pinkish round bodies in the conjunctival folds. It can be acute or chronic. Acute causes include viral infections like adenovirus and herpes simplex virus. Chronic causes include trachoma caused by Chlamydia trachomatis, which can lead to scarring and complications like corneal ulceration and trichiasis. Treatment depends on the underlying cause but may include antibiotics, antivirals, or the SAFE strategy for trachoma control.
Trachoma History :-
Trachoma was previously known as Egyptian ophthalmia and endemic in the Middle East since prehistoric times.
Name comes from Greek word for ROUGH.
Other name :- Granular conjunctivitis, blinding trachoma, Egyptian ophthalmia
Trachoma is the most common infectious cause of blindness in the world Due to recurrent ocular infection with Chlamydia trachomatis.
Trachoma is the leading cause of preventable irreversible blindness in the world.
Repeat infection with this organism leads to conjunctival inflammation and scarring, trichiasis, and ultimately blinding corneal opacification
Epidemiology:-The World Health Organization (WHO) reports trachoma is endemic to more than 50 countries, with most blinding trachoma in Africa.
Worldwide, an estimated 2.2 million people are visually impaired as a result of trachoma, of whom 1.2 million are blind.
India has become free from Trachoma-with an overall prevalence found to be only 0.7% in the National Trachoma Survey Report (2014-17).
to download this presentation from this link
https://mohmmed-ink.blogspot.com/2020/11/conjunctival-diseases-overview.html
over view for the conjunctival diseases. clinical presentation treatment .
This document provides an overview of common bacterial infections that can affect the eye. It begins by describing the different types of bacteria (gram-positive/negative, cocci/rods) and then discusses specific bacteria like Staphylococcus, Streptococcus, Pseudomonas, and others. The document then covers various bacterial infections including preseptal and orbital cellulitis, blepharitis, hordeolum, conjunctivitis, gonococcal conjunctivitis, chlamydial conjunctivitis including trachoma, and appropriate treatment approaches.
CONJUCTIVITIS of the human eye for certificate nursesokumuatanas1
The conjunctiva is the thin membrane that lines the eyelids and covers the white part of the eye. Conjunctivitis is inflammation of the conjunctiva that can be caused by allergens, irritants, viruses, bacteria, fungi, trauma, or neoplasms. Common symptoms include eye redness, discharge, itching, and tearing. Diagnosis is usually based on symptoms and signs. Treatment depends on the underlying cause but may include antibiotics, antivirals, or anti-allergens.
This document discusses different types of allergic conjunctivitis. It begins by defining allergic conjunctivitis as inflammation of the conjunctiva due to hypersensitivity reactions. It then lists and describes the main types: acute allergic conjunctivitis, seasonal/perennial allergic conjunctivitis, vernal keratoconjunctivitis, atopic keratoconjunctivitis, giant papillary conjunctivitis, phlyctenular keratoconjunctivitis, and contact allergen blepharoconjunctivitis. For each type, it covers causes, clinical features, diagnosis, and treatment approaches.
The document discusses various eye infections and disorders including:
- Hordeolum (styes) which are abscesses of the eyelid caused by Staphylococcus bacteria. Internal hordeolums involve the meibomian glands. Treatment includes warm compresses and occasionally incision.
- Chalazion which are granulomatous inflammations of the meibomian glands, appearing as hard, non-tender swellings on the eyelids. Treatment is usually incision and curettage.
- Blepharitis, a common chronic eyelid inflammation involving the skin, eyelashes and glands of the eyelid margin. It can be anterior or posterior
The corneal diseases are one of the leading causes of blindness in the world. in most cases, these infections are preventable or treatable.
This seminar provides an overview of the anatomy and physiology of the cornea, as well as an overview of common conditions.
This document discusses the classification and types of acute conjunctivitis. It is classified based on onset (acute, sub-acute, chronic), type of exudate (serous, catarrhal, mucopurulent, purulent, pseudo-membranous), and etiology (infectious, non-infectious). The types discussed include bacterial (purulent, gonococcal, membranous, angular), viral, chlamydial, and ophthalmia neonatorum. For each type, the etiology, clinical features, complications, and treatment are described. Risk factors like dry eye, nutritional deficiencies, and immune deficiencies that can lead to acute conjunctivitis are also summarized
This document discusses the classification and types of acute conjunctivitis. It is classified based on onset (acute, sub-acute, chronic), type of exudate (serous, catarrhal, mucopurulent, purulent, pseudo-membranous), and etiology (infectious, non-infectious). The types of acute conjunctivitis discussed include bacterial (purulent, gonococcal, membranous, angular), viral, chlamydial, and ophthalmia neonatorum. For each type, the etiology, clinical features, complications, and treatment options are provided.
This document discusses the classification and types of acute conjunctivitis. It is classified based on onset (acute, sub-acute, chronic), type of exudate (serous, catarrhal, mucopurulent, purulent, pseudo-membranous), and etiology (infectious, non-infectious). The types discussed include bacterial (purulent, gonococcal, membranous, angular), viral, chlamydial, and ophthalmia neonatorum. For each type, the etiology, clinical features, complications, and treatment are described. Risk factors like dry eye, nutritional deficiencies, and immune deficiencies that can lead to acute conjunctivitis are also summarized
This document discusses the classification and types of acute conjunctivitis. It is classified based on onset (acute, sub-acute, chronic), type of exudate (serous, catarrhal, mucopurulent, purulent, pseudo-membranous), and etiology (infectious, non-infectious). The types discussed include bacterial (purulent, gonococcal, membranous, angular), viral, chlamydial, and ophthalmia neonatorum. For each type, the etiology, clinical features, complications, and treatment are described. Risk factors like dry eye, nutritional deficiencies, and immune deficiencies that can lead to acute conjunctivitis are also outlined
This document summarizes different types of allergic conjunctivitis including acute, seasonal, and perennial allergic conjunctivitis. It also discusses phlyctenular keratoconjunctivitis, vernal keratoconjunctivitis (VKC), atopic keratoconjunctivitis (AKC), non-allergic eosinophilic conjunctivitis, contact allergic blepharoconjunctivitis, and giant papillary conjunctivitis. For each type, it describes the etiology, clinical presentation, signs, complications, and treatment approaches. Management involves identifying and removing allergens, using mast cell stabilizers, antihistamines, NSAIDs, topical
Trachoma of human eye for certificate nursesokumuatanas1
Trachoma is a contagious eye disease caused by the bacterium Chlamydia trachomatis that can lead to blindness. It spreads through direct contact with eye or nose secretions from infected individuals or indirect contact via fomites. Repeated infections cause scarring of the inner eyelid and distortion of the eyelashes which can scrape the cornea. The SAFE strategy aims to eliminate trachoma through surgery, antibiotics, facial cleanliness, and environmental improvements.
Ocular manifestations of tuberculosis infectionShahid Manzoor
Ocular manifestations of TB can affect any part of the eye. Secondary ocular TB results from hematogenous spread from a distant site. Presentations include adnexal lesions like lupus vulgaris and eyelid granulomas. Anterior segment involvement includes conjunctivitis, granulomas, keratitis and iridocyclitis. Posterior segment manifestations are choroidal tubercles, tuberculomas, serpiginous-like choroiditis and subretinal abscesses. Neuro-ophthalmic signs consist of optic nerve tubercles or neuritis. Complications include cataracts, glaucoma, cystoid macular edema and retinal detachment. Treatment involves antitubercular drugs
1. The document discusses conjunctivitis, specifically describing the anatomy of the conjunctiva and types of bacterial conjunctivitis.
2. It defines conjunctivitis as inflammation of the conjunctiva and describes the etiological classification including infective, allergic, irritative, and others.
3. The most common type of acute bacterial conjunctivitis is acute mucopurulent conjunctivitis, which presents with conjunctival hypermia and mucopurulent discharge. Common causes are Staphylococcus aureus and Haemophilus influenzae.
The cornea is the transparent outer layer of the eyeball and the most important refractive structure. It consists of 5 layers - epithelium, Bowman's layer, stroma, Descemet's membrane, and endothelium. The cornea remains transparent due to factors like its lack of blood vessels and pigmentation. Common corneal diseases include bacterial keratitis, fungal keratitis, herpes simplex keratitis, and keratoconus. Bacterial keratitis is treated with topical and oral antibiotics while fungal keratitis often requires systemic antifungals. Herpes simplex keratitis can cause recurrent epithelial defects treated with antivirals. Keratoconus is a degenerative condition causing irregular astigmat
The lymphatic drainage of the conjunctiva is described, with the medial conjunctiva draining to the submandibular nodes and the lateral conjunctiva draining to the preauricular nodes. The conjunctiva is innervated by branches of the ophthalmic and maxillary divisions of the trigeminal nerve. The functions of the conjunctiva include producing the tear film layers through secretion of mucus, aqueous fluid, and lipids. Conjunctivitis presents with redness, discharge, irritation, and sometimes blurred vision. The discharge can be watery, mucopurulent, or purulent depending on the etiology. Follicles and papillae may form in the conj
This document provides information on the management of trachoma. It begins with an introduction to trachoma, noting that it is caused by Chlamydia trachomatis and a leading cause of blindness. The document then covers the diagnosis, history, clinical picture, signs and stages of trachoma. It discusses laboratory tests, differential diagnosis, complications, treatment including the SAFE strategy, follow up care, and references. The treatment section provides details on medical treatment, local treatment, surgical treatment, and treatment of complications.
Similar to Ophthalmology 5th year, 1st & 2nd lectures (Dr. Ali) (20)
This document outlines guidelines for neonatal life support, including drying and warming the baby, assessing need for intervention, establishing an airway, ventilating the lungs, performing rescue breathing or chest compressions, and administering drugs if needed. It discusses delaying cord clamping, using air or blended oxygen for resuscitation, and wrapping preterm babies. Guidelines for compression to ventilation ratio, meconium suction, and therapeutic hypothermia are also presented. Steps for basic and advanced life support are outlined.
Growth and development milestones from birth through age 5 are outlined. Growth refers to increases in cell mass and number, while development is the differentiation of functions. Key milestones are provided for gross and fine motor skills, communication/language, and cognitive/social development according to average ages. Growth is also defined for weight, height/length, and head circumference based on age.
This document contains a list of various medical equipment and supplies used for anesthesia and airway management. Items on the list include different types of endotracheal tubes, laryngeal masks, tracheostomy tubes, airway devices, sutures, IV fluids, and wound closure materials. The list appears to be an inventory of available anesthesia and surgical supplies.
I examined this patient's peripheral vascular system. On inspection from the end of the bed, the patient appeared comfortable at rest with no signs of vascular disease. Both limbs were pink and well perfused with normal capillary refill times. All pulses were present and equal bilaterally. Buerger's test was negative. To complete my examination, I would assess the cardiovascular system and test the relevant muscles and nerves of the affected limb, and perform duplex scans and ankle-brachial pressure indexes.
This document summarizes common venous disorders, including varicose veins, superficial thrombophlebitis, deep vein thrombosis (DVT), and their causes, risk factors, symptoms, diagnosis, and treatment. Some key points:
- Varicose veins are abnormally dilated and tortuous veins caused by increased pressure and valve incompetence. Risk factors include family history, pregnancy, and obesity. Treatment includes compression stockings, sclerotherapy, and surgery.
- DVT occurs when blood clots form in the deep veins, usually in the legs. It can cause leg swelling/pain and potentially fatal pulmonary embolism. Risk increases with age, surgery, trauma, cancer, and genetic factors. Ul
This document summarizes the surgical management of lumbar disc herniation. It outlines the absolute and relative indications for surgery, as well as the optimal timing. The available surgical interventions are listed, along with their common complications and results. Cauda equina syndrome is the absolute indication for surgery and requires immediate treatment. Relative indications include failure of conservative treatments and severe, intractable radicular pain. Open discectomy is considered the gold standard, while microdiscectomy has shorter recovery times. Patient selection influences surgical outcomes.
The origins of surgery can be traced back many centuries, with practitioners using various materials and techniques for closing wounds. Ancient methods included using ants or thorns to close wounds. In more modern times, catgut made from sheep intestine was used. Post-World War II, sutures were developed with needles attached to reduce tissue trauma. Sutures are classified based on material and absorbability, and appropriate suture selection depends on factors like the tissue and wound characteristics.
The document discusses the anatomy and examination of the knee joint. It details the two knee joints - the patellofemoral and tibiofemoral joints. It describes the ligaments that provide stability to the tibiofemoral joint, including the anterior cruciate ligament and posterior cruciate ligament. The document outlines how to examine a patient's knee through obtaining a history, assessing symptoms, performing physical signs and tests of stability. Common tests mentioned include the Lachman test, McMurray's test and apprehension test. Imaging options like x-rays, MRI and arthrography are also summarized.
This document discusses hydrocephalus, including its definition, causes, classification, presentation, diagnosis and treatment. Some key points:
- Hydrocephalus is an abnormal enlargement of the ventricles due to excessive CSF accumulation from disturbances in flow, absorption or secretion.
- It can be obstructive, caused by blockages, or communicating, caused by issues outside the ventricles or with CSF absorption.
- Common causes include tumors, infections, bleeding and congenital abnormalities.
- Treatment involves surgically inserting shunts to drain CSF from the brain to the abdomen, or performing third ventriculostomies to create openings and bypass blockages.
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Lower GI hemorrhage can originate from the colon or small bowel. Common causes include bleeding diverticulosis, colonic angiodysplasia, and neoplasms. Evaluation involves laboratory tests, colonoscopy, video capsule endoscopy, or angiography to locate the bleeding site. Treatment options depend on the cause but may include endoscopic therapies, angiographic embolization, or surgery.
Developmental dysplasia of the hip is a condition where the hip joint is unstable or partially dislocated. It affects 1-50 out of every 1000 live births, with 60% being detected by 1 week of age and 90% by 8 weeks. The document discusses the anatomy, aetiology, pathology, clinical features, imaging, and different treatment approaches depending on if the patient is under 6 months, 6 months to 6 years, or above 6 years of age.
This document summarizes the management of upper GI hemorrhage. It outlines the steps to take which include obtaining a complete history and physical exam, performing laboratory tests, considering radiological scans, stabilizing the patient, identifying the source of bleeding through endoscopy, and various pharmacological and endoscopic interventions depending on the underlying cause of bleeding such as PPIs, octreotide, angiography, embolization, surgery, or TIPS procedure. Refractory cases may require repeat endoscopy, angiography, embolization or surgery.
- Gastrointestinal hemorrhage is a common medical problem, accounting for 1-2% of hospital admissions. The most common causes are peptic ulcer disease (50%), esophageal varices (10-20%), and gastritis (10-25%).
- Symptoms depend on the location of bleeding in the GI tract. Upper GI bleeding causes vomiting blood (hematemesis) or black tarry stools (melena), while lower GI bleeding causes maroon or red blood in stool (hematochezia).
- Common etiologies include peptic ulcers, esophageal/gastric varices, gastritis, Mallory-Weiss tears, watermelon stomach, and Die
The document discusses different types of drains used in medical procedures including closed and open drains. Closed drains have lower infection rates but limit mobility while open drains are softer and more comfortable. Examples of closed drains include pigtail catheters and urinary catheters while open drains include Penrose and corrugated drains. Potential problems with all drains include tissue trauma, erosion, herniation, leaks, bacterial infection, and fluid/electrolyte loss.
The document discusses various artery emergencies including acute arterial occlusion, abdominal aortic aneurysm, and peripheral vascular injuries. Acute arterial occlusion occurs when blood flow to the leg is suddenly blocked, requiring immediate medical care to restore flow and prevent tissue death and gangrene. Symptoms include severe leg pain and skin changes. Abdominal aortic aneurysms are localized dilations of the abdominal aorta, often below renal arteries, and may cause abdominal or back pain. Peripheral vascular injuries from trauma can damage arteries and require rapid treatment to prevent limb loss.
The document discusses different treatment options for renal and ureteric stones, including conservative management, extracorporeal shock wave lithotripsy (ESWL), percutaneous nephrolithotomy (PCNL), ureteroscopy (URS), and open surgery. For renal stones less than 2cm, ESWL is recommended, while PCNL may be used for larger stones or when ESWL fails. URS is recommended for ureteric stones, with an 85-90% success rate in achieving a stone-free state. Complications, prevention strategies, and dietary and medication advice are also summarized.
This document discusses fluid and electrolyte balance and management. It covers the composition of body fluids, mechanisms that regulate fluid homeostasis, and types of parenteral fluid therapy including crystalloids like saline solutions and dextrose solutions, as well as colloid solutions. It provides guidelines on fluid replacement and maintenance requirements, and examples of intravenous fluid orders.
This document discusses various types of orthopedic infections including acute and subacute hematogenous osteomyelitis, chronic osteomyelitis, purulent infectious arthritis, soft tissue infections, and postoperative, posttraumatic, and postarthroplasty infections. It covers the incidence, diagnosis, and treatment of these conditions. Key factors that can influence infections include patient factors like general health, immunology, and alcohol/medicine use as well as surgical factors such as preparation, sterilization, and operating theater. Diagnosis involves clinical examination, laboratory tests, imaging like x-rays, ultrasound, CT, and MRI scans. Treatment depends on the type and severity of infection but generally involves antibiotics, biopsy or aspiration, surgery
The kidneys can be injured by blunt or penetrating trauma, requiring timely medical evaluation. The kidneys are normally protected by back muscles but can be damaged by severe impacts or objects piercing the skin. Blunt trauma may cause bruising while penetrating injuries like gunshots can enter elsewhere and travel to the kidneys. Most kidney injuries are minor but evaluation with imaging tests like ultrasound or CT scans helps classify the injury and guide management, which may include rest, antibiotics, surgery, or nephrectomy in more severe cases.
Osvaldo Bernardo Muchanga-GASTROINTESTINAL INFECTIONS AND GASTRITIS-2024.pdfOsvaldo Bernardo Muchanga
GASTROINTESTINAL INFECTIONS AND GASTRITIS
Osvaldo Bernardo Muchanga
Gastrointestinal Infections
GASTROINTESTINAL INFECTIONS result from the ingestion of pathogens that cause infections at the level of this tract, generally being transmitted by food, water and hands contaminated by microorganisms such as E. coli, Salmonella, Shigella, Vibrio cholerae, Campylobacter, Staphylococcus, Rotavirus among others that are generally contained in feces, thus configuring a FECAL-ORAL type of transmission.
Among the factors that lead to the occurrence of gastrointestinal infections are the hygienic and sanitary deficiencies that characterize our markets and other places where raw or cooked food is sold, poor environmental sanitation in communities, deficiencies in water treatment (or in the process of its plumbing), risky hygienic-sanitary habits (not washing hands after major and/or minor needs), among others.
These are generally consequences (signs and symptoms) resulting from gastrointestinal infections: diarrhea, vomiting, fever and malaise, among others.
The treatment consists of replacing lost liquids and electrolytes (drinking drinking water and other recommended liquids, including consumption of juicy fruits such as papayas, apples, pears, among others that contain water in their composition).
To prevent this, it is necessary to promote health education, improve the hygienic-sanitary conditions of markets and communities in general as a way of promoting, preserving and prolonging PUBLIC HEALTH.
Gastritis and Gastric Health
Gastric Health is one of the most relevant concerns in human health, with gastrointestinal infections being among the main illnesses that affect humans.
Among gastric problems, we have GASTRITIS AND GASTRIC ULCERS as the main public health problems. Gastritis and gastric ulcers normally result from inflammation and corrosion of the walls of the stomach (gastric mucosa) and are generally associated (caused) by the bacterium Helicobacter pylor, which, according to the literature, this bacterium settles on these walls (of the stomach) and starts to release urease that ends up altering the normal pH of the stomach (acid), which leads to inflammation and corrosion of the mucous membranes and consequent gastritis or ulcers, respectively.
In addition to bacterial infections, gastritis and gastric ulcers are associated with several factors, with emphasis on prolonged fasting, chemical substances including drugs, alcohol, foods with strong seasonings including chilli, which ends up causing inflammation of the stomach walls and/or corrosion. of the same, resulting in the appearance of wounds and consequent gastritis or ulcers, respectively.
Among patients with gastritis and/or ulcers, one of the dilemmas is associated with the foods to consume in order to minimize the sensation of pain and discomfort.
Travel Clinic Cardiff: Health Advice for International TravelersNX Healthcare
Travel Clinic Cardiff offers comprehensive travel health services, including vaccinations, travel advice, and preventive care for international travelers. Our expert team ensures you are well-prepared and protected for your journey, providing personalized consultations tailored to your destination. Conveniently located in Cardiff, we help you travel with confidence and peace of mind. Visit us: www.nxhealthcare.co.uk
5-hydroxytryptamine or 5-HT or Serotonin is a neurotransmitter that serves a range of roles in the human body. It is sometimes referred to as the happy chemical since it promotes overall well-being and happiness.
It is mostly found in the brain, intestines, and blood platelets.
5-HT is utilised to transport messages between nerve cells, is known to be involved in smooth muscle contraction, and adds to overall well-being and pleasure, among other benefits. 5-HT regulates the body's sleep-wake cycles and internal clock by acting as a precursor to melatonin.
It is hypothesised to regulate hunger, emotions, motor, cognitive, and autonomic processes.
Know the difference between Endodontics and Orthodontics.Gokuldas Hospital
Your smile is beautiful.
Let’s be honest. Maintaining that beautiful smile is not an easy task. It is more than brushing and flossing. Sometimes, you might encounter dental issues that need special dental care. These issues can range anywhere from misalignment of the jaw to pain in the root of teeth.
How to Control Your Asthma Tips by gokuldas hospital.Gokuldas Hospital
Respiratory issues like asthma are the most sensitive issue that is affecting millions worldwide. It hampers the daily activities leaving the body tired and breathless.
The key to a good grip on asthma is proper knowledge and management strategies. Understanding the patient-specific symptoms and carving out an effective treatment likewise is the best way to keep asthma under control.
Giloy in Ayurveda - Classical Categorization and SynonymsPlanet Ayurveda
Giloy, also known as Guduchi or Amrita in classical Ayurvedic texts, is a revered herb renowned for its myriad health benefits. It is categorized as a Rasayana, meaning it has rejuvenating properties that enhance vitality and longevity. Giloy is celebrated for its ability to boost the immune system, detoxify the body, and promote overall wellness. Its anti-inflammatory, antipyretic, and antioxidant properties make it a staple in managing conditions like fever, diabetes, and stress. The versatility and efficacy of Giloy in supporting health naturally highlight its importance in Ayurveda. At Planet Ayurveda, we provide a comprehensive range of health services and 100% herbal supplements that harness the power of natural ingredients like Giloy. Our products are globally available and affordable, ensuring that everyone can benefit from the ancient wisdom of Ayurveda. If you or your loved ones are dealing with health issues, contact Planet Ayurveda at 01725214040 to book an online video consultation with our professional doctors. Let us help you achieve optimal health and wellness naturally.
“Psychiatry and the Humanities”: An Innovative Course at the University of Mo...Université de Montréal
“Psychiatry and the Humanities”: An Innovative Course at the University of Montreal Expanding the medical model to embrace the humanities. Link: https://www.psychiatrictimes.com/view/-psychiatry-and-the-humanities-an-innovative-course-at-the-university-of-montreal
NAVIGATING THE HORIZONS OF TIME LAPSE EMBRYO MONITORING.pdfRahul Sen
Time-lapse embryo monitoring is an advanced imaging technique used in IVF to continuously observe embryo development. It captures high-resolution images at regular intervals, allowing embryologists to select the most viable embryos for transfer based on detailed growth patterns. This technology enhances embryo selection, potentially increasing pregnancy success rates.
Discover the benefits of homeopathic medicine for irregular periods with our guide on 5 common remedies. Learn how these natural treatments can help regulate menstrual cycles and improve overall menstrual health.
Visit Us: https://drdeepikashomeopathy.com/service/irregular-periods-treatment/
Nano-gold for Cancer Therapy chemistry investigatory projectSIVAVINAYAKPK
chemistry investigatory project
The development of nanogold-based cancer therapy could revolutionize oncology by providing a more targeted, less invasive treatment option. This project contributes to the growing body of research aimed at harnessing nanotechnology for medical applications, paving the way for future clinical trials and potential commercial applications.
Cancer remains one of the leading causes of death worldwide, prompting the need for innovative treatment methods. Nanotechnology offers promising new approaches, including the use of gold nanoparticles (nanogold) for targeted cancer therapy. Nanogold particles possess unique physical and chemical properties that make them suitable for drug delivery, imaging, and photothermal therapy.
The biomechanics of running involves the study of the mechanical principles underlying running movements. It includes the analysis of the running gait cycle, which consists of the stance phase (foot contact to push-off) and the swing phase (foot lift-off to next contact). Key aspects include kinematics (joint angles and movements, stride length and frequency) and kinetics (forces involved in running, including ground reaction and muscle forces). Understanding these factors helps in improving running performance, optimizing technique, and preventing injuries.
2. Applied anatomy
the conjunctiva is divided into the following
three parts.
•Palpebral which starts at the muco-
cutaneous junction at the eyelid margin and
is firmly adherent to the tarsal plates.
•Forniceal which is loose and redundant so
that it swells easily and is thrown into folds.
•Bulbar which lines the anterior sclera.
2
4. Microscopic anatomy.
The conjunctival epithelium is between two and
five cell layers thick. With chronic exposure and
drying, the epithelium may become keratinized.
The stroma (substantia propria) consists of
richly vascularized connective tissue which is
separated from the epithelium by a basement
membrane. The accessory lacrimal glands are
located within the stroma. The mucin secretors
are of the following three types
4
6. •The goblet cells which are located within the
epithelium and are most dense inferonasally.
•The crypts of Henle which are located along the
upper third of the superior tarsal conjunctiva.
•The glands of Manz which encircle the limbus.
Clinical features of conjunctival diseases.
which should be considered in the differential
diagnosis of conjunctival inflammation are: (1)
type of discharge, (2) type of conjunctival
reaction, (3) presence of pseudomembranes or
true membranes and (4) presence or absence of
lymphadenopathy. 6
7. DISCHARGE types.
The following are the main types of discharge:
1-Watery discharge composed of a serous exudate
and a variable amount of refluxly secreted tears. It
is typical of viral and toxic inflammations.
2-Mucoid discharge is typical of vernal
conjunctivitis and keratoconjunctivitis sicca.
3-Prulent discharge occurs in severe acute
bacterial infections.
4-Mucoprulent discharge occurs in mild bacterial
as well as chlamydial infections.
7
8. FOLLICULAR CONJUNCTIVAL
REACTION
Clinically, they appear as multiple, discrete, slightly
elevated lesions reminiscent of small grains of rice.
The THREE main causes of follicles are
(1) viral infections,
(2) Chlamydia infections,
(3) hypersensitivity to topical
medication.
8
11. PAPILLARY CONJUNCTIVAL REACTION
Papillae can develop only in the palpebral
conjunctiva and the bulbar conjunctiva at
the limbus. Papillae are most frequently
seen in the upper palpebral conjunctiva. A
papillary reaction is more non-specific and
of less diagnostic value than a follicular
response. The 4 main causes of papillae
are (1) chronic blepharitis, (2) vernal
disease, (3) bacterial infection, (4)
contact lens related problems .
11
13. True membranes
Attempts to remove the membrane may be
accompanied by tearing of the epithelium and
bleeding. The main causes are infections
resulting from ß-haemolytic streptococci and
diphtheria.
13
14. LYMPHADENOPATHY
Lymphatic drainage of the conjunctiva is to the
preauricular and submandibular nodes.
Lymphadenopathy is a feature of
(1) viral infections,
(2) chlamydial infections and
(3) severe gonococcal
conjunctivitis.
14
15. Disorders of the Conjunctiva
Bacterial conjunctivitis .
Simple bacterial conjunctivitis.
•a very common and usually self-limiting condition.
•The most common causative organisms are
Staphylococcus epidermidis and Staphylococcus
aureus but
•other Gram-positive cocci, including Streptococcus
pneumoniae, are also frequent pathogens as are the
Gram-negative Haemophilus influenzae and
Moraxella lacunata.
15
16. CLINICAL FEATURES.
Presentation.
with an acute onset of redness, grittiness, burning and discharge.
Photophobia may be present if there is associated severe punctate
epitheliopathy or peripheral corneal infiltrates. On waking, the
eyelids are frequently stuck together and difficult to open as a result
of the accumulation of exudate during the night. Both eyes are
usually involved, although one may become affected before the other
by a day or so.
Examination.
shows conjunctival hyperaemia which is maximal in the fornices a
mild papillary reaction, a mucopurulent discharge and lid crusting.
16
17. TREATMENT.
*Even without treatment, simple
conjunctivitis usually resolves within 10-14
days and laboratory tests are not routinely
performed.
*Before initiating treatment, it is important to
bathe all discharge away.
*Initial treatment is broad-spectrum
antibiotic drops during the day and ointment
at night until the discharge has ceased.
17
19. Viral conjunctivitis
Adenoviral keratoconjunctivitis.
The spectrum of disease varies from mild and almost
inapparent, to full-blown cases characterized by two
syndromes :
(1)pharyngoconjunctival fever (PCF)
(2) epidemic keratoconjunctivitis (EKC)
both of which occur in epidemics and are highly
contagious for up to 2 weeks. Because the viruses
can be spread by finger-to-eye contact, it is important
for ophthalmologists to wash their hands after being
in contact with an acute red eye.
19
20. CLINICAL FEATURES.
A-Conjunctivitis
Presentation.
with acute onset of watering, redness, discomfort and photophobia. Both eyes
are affected in about 60% of cases.
Examination .
shows lid oedema, a follicular response which is frequently associated with a
preauricular adenopathy. In severe cases, subconjunctival haemorrhages,
chemosis and pseudomembranes may develop.
Treatment .
unsatisfactory but spontaneous resolution within 2 weeks is the rule. Topical
steroids should be avoided unless the inflammation is very severe and the
possibility of herpes simplex infection has been excluded.
20
21. B-Keratitis.
rarely a problem in PCF, but it may be severe in
patients with EKC.
Treatment .
with topical steroids is indicated only
1- if the eye is uncomfortable or
2-visual acuity diminished.
Steroids do not shorten the natural course of the
disease but merely suppress the corneal
inflammation so that the lesions tend to recur if
treatment is discontinued prematurely.
21
30. Chlamydia conjunctivitis.
Adult inclusion conjunctivitis(TRIC)
1.(TRIC) typically affects young adults
during sexually active years.
2.The infection is almost invariably venereal
in nature
3.The eye lesions present about 1 week
following sexual exposure and
4.may be associated with a non-specific
urethritis or cervicitis.
30
31. CLINICAL FEATURES of TRIC.
Presentation
is with a usually unilateral chronic muco-purulent discharge. If untreated, the
disease has a prolonged remittent course.
Examination
shows large opalescent follicles in the fornices upper tarsal involvement
predominates. As the disease progresses. Preauricular adenopathy is common.
Epithelial keratitis of the upper half of the cornea is the most frequent corneal
finding.
TREATMENT
A/Topical treatment is with tetracycline ointment four times a day for 6 weeks.
B/Systemic treatment can be with one of the following oral antibiotics:
1.Doxycycline. (Contraindicated in childhood )
2.Tetracycline 250mg four times daily for 6 weeks(Contraindicated in
childhood).
3.Erythromycin 250 mg four time daily for 6 weeks(to children and adults)
31
34. Trachoma.
1-caused by Chlamydia trachomatis serotypes A,B,Ba
and C serotypes.
2-It is a disease of underprivileged populations with poor
conditions of hygiene.
3-the leading cause of preventable blindness in the
developing world.
Presentation .
1-during childhood with the formation of bulbar and palpebral
Conjunctival follicles and
2-diffuse infiltration with papillae.
3-This is followed by chronic inflammation which eventually
4-causes Conjunctival scarring; this, in turn, may lead to
5-trichiasis and corneal complications in older children and adults.
34
35. World Health Organization grading :
•TF = trachomatous follicular inflammation of more than five
follicles larger than 0.5 mm on the upper tarsus .
•TI = trachomatous intense inflammation with thickening obscuring
over 50% of large, deep, tarsal vessels.
•TS = trachomatous (conjunctival) cicatrization with white lines,
bands or sheets of fibrosis in the tarsal conjunctiva.
•TT = trachomatous trichiasis of at least one inturning eyelash or
evidence of recent removal .
•CO = corneal opacity obscuring at least part of the pupil margin
and causing a visual acuity of less than 6/18.
Treatment .
a/of active disease is similar to adult inclusion conjunctivitis. The
most important preventive measure is strict personal hygiene
within the family, especially washing the faces of young children.
b/of chronic disease, treatment of complications…
35
37. Allergic conjunctivitis
Seasonal allergic conjunctivitis (hay fever) .
1- a very common allergic reaction
2-triggered by airborne antigens such as mould spores,
pollen, grass, hair, wool and feathers.
Presentation is with acute, transient attacks of
a/itching.
b/lacrimation.
c/redness.
Examination …The conjunctiva shows
1-mild chemosis and
2-a diffuse papillary reaction. In severe cases,
3-the eyelids may be slightly oedematous but the cornea
37
38. Treatment of acute attack. Stage one.
Although topical steroids are also efficacious, their use must be
with great caution with appropriate antibiotic cover as short
courses with close follow up because of their potential for
unwanted side.
Although systemic antihistamines are effective in suppressing
other symptoms of hay fever, they are of limited benefit in the eye.
As example chloropheneramine eye drops or more recently
selective antihistamine as levocabastin eye drops.
Prevention of acute attack. Stage two.
1-Modify environment.
2-avoid allergen if known and possible…
3- a topical mast cell stabilizer instilled four to six times a day in
the form of 2% sodium cromoglycate drops 38
39. 39
Acute allergic conjunctivitis
1- an urticarial reaction.
2- caused by a large amount of
allergen reaching the conjunctival sac.
Clinically.
the condition is characterized by a
a/sudden onset of severe chemosis
and swelling of the eyelids .
b/Most cases resolve spontaneously
within a few hours and, apart from
reassurance, require no specific
treatment.
41. Vernal keratoconjunctivitis (VKC) (spring
catarrh) .
is an uncommon recurrent, bilateral, external, ocular
inflammation affecting children and young adults.
CLINICAL FEATURES.
The main symptoms are
1-intense ocular itching which may be associated with
2-lacrimation, photophobia, foreign body sensation and
burning.
3-Thick mucus discharge from the eyes and ptosis also
occurs.
4-The symptoms may occur throughout the year, but are
characteristically worse during the spring and summer.
41
42. The three main clinical types are
(1) Palpebral. affect mainly palpebral
conjunctiva.
(2) Bulbar. affect mainly bulbar conjunctiva
and usually more severe.
(3) Mixed. affect both and usually the most
severe.
Patients with VKC have an increased incidence
of keratoconus.
42
43. TREATMENT
•Acute attack
•Topical steroids are usually effective but may not
achieve complete control of the disease in all cases. As
prolonged treatment is usually required, steroid- induced
complications are high and they must be used with great
caution.
•Prevention.
•Avoid allergen…modify environment…
•Sodium cromoglycate 2% drops four times daily is
very useful in enabling patients to reduce or even
discontinue steroid medication. it is not, however, as
effective as steroids in controlling acute exacerbations
and only 20% of patients respond to cromoglycate
alone.
43
45. Chemical conjunctivitis .
A chemical burn is the only type of ocular injury that
requires immediate treatment without first taking a
history and performing a careful examination. It is top
ocular emergency
Acid burns.
1-are usually less serious than those caused by alkalis
because acids tend to precipitate tissue proteins which
coagulate and form a barrier preventing deep
penetration.
2-The main damage is therefore restricted to the lids,
conjunctiva and cornea.
45
46. Alkaline burns .
1-are more serious because alkalis saponify lipids in the
corneal epithelium, and bind to the mucoproteins and
collagen in the corneal stroma.
2-They therefore disrupt the normal barriers of the
cornea and penetrate deep with rapidly increase the pH
of the anterior chamber, with resultant damage to the
lens and anterior uvea.
3-The late complications of alkali burns not only involve
the external ocular structures but can also give rise to
cataract, uveitis and secondary glaucoma.
4- In severe cases phthisis bulbi(blind degenerative eye)
is the tragic end result.
46
47. IMMEDIATE emergency/first aid!!!
1.Copious irrigation with bland sterile fluid and
even with tap water???
2.removal of all particulate matter.
As alkalis bind to the corneal stroma, they may
continue to injure ocular structures after initial
irrigation has removed all free alkali. For this
reason, prolonged irrigation is necessary in eyes
with alkali burns.
No rule in adding acids to equalize alkali as the
resultant heat from this reaction can create more
damage!!! 47
48. SUBSEQUENT TREATMENT.
Subsequent treatment of alkali burns is aimed at preventing the
complications that occur 2-3 weeks after the initial insult (failure of
corneal re-epithelialization, melting and descemetocele
formation):
1.Topical steroids can be used safely during the first week to
combat uveitis without increasing the risk of corneal melting.
2.Vitamin C and citrate are beneficial in eyes with significant
burns but their exact mode of action is not fully understood:
3.Tear substitutes and, if necessary, punctal occlusion should be
used to prevent the effects of tear deficiency.
4.Contact lenses have a therapeutic role during recovery from a
chemical burn but will not prevent symblepharon formation.
5.Surgery for late complications of severe burns includes the
following:
48
50. Conjunctival degenerations
1-Pinguecula.
a-an extremely common lesion which
b-consists of a yellow-white deposit on the
bulbar conjunctiva adjacent to the nasal or
temporal aspect of the limbus.
c-Some pingueculae may enlarge very
slowly but surgical excision is seldom
required.
50
51. 2-Pterygium.
Definition.
a triangular sheet of fibro-vascular tissue which invades
the corneal epithelium.
pterygia typically develop in patients who have been
living in hot climates and may represent a response to
chronic dryness and exposure to the sun.
Treatment .by surgical excision is indicated either for
cosmetic reasons or in cases of progression towards the visual
axis. The most favoured method is excision of the conjunctival
component followed by grafting of free conjunctiva, usually from
the bulbar surface of the same eye
51
53. 3-Concretions
Conjunctival concretions are small yellow
white deposits commonly present in the
palpebral conjunctiva of the elderly.
They may also occur in patients with
chronic Conjunctival inflammatory
conditions.
Concretions are usually discrete but
confluent concretions are not uncommon .
They can be easily removed with a needle.
53