WHAT IS NEW IN GLAUCOMA MANAGEMENT? FROM DRUGS TO STEM THERAPY TO YOGA AND MEDITATION, IT'S ALL THERE. GOOD FOR EVERY OPHTHALMOLOGIST AND POST - GRADUATES. INNOVATION IS THE NEW NORMAL.
This document discusses new drugs and therapies for glaucoma that are currently in development. It outlines several novel drug targets and mechanisms of action that are being investigated, including ROCK inhibitors, adenosine receptor agonists, BkCa channel modulators, siRNAs, cannabinoids, and local calcium channel blockers. It also discusses neuroprotective strategies such as antioxidants, memantine, neurotrophic growth factors, gene therapy, and stem cell therapy that aim to prevent further neural damage in glaucoma. Overall, the document provides an overview of the many innovative approaches that are being researched to better treat glaucoma beyond current first-line therapies.
This document discusses various antifibrotic agents used in ophthalmology, including 5-fluorouracil, mitomycin C, and amniotic membrane. 5-fluorouracil inhibits DNA synthesis to reduce fibroblast proliferation and is used after glaucoma surgery and for ocular surface tumors. Mitomycin C inhibits cell proliferation and is applied during pterygium removal and glaucoma surgery to prevent scarring. Amniotic membrane promotes wound healing and inhibits scarring. It is used for ocular surface reconstruction after injuries or surgery.
This document discusses ophthalmic viscosurgical devices (OVDs), including their history, properties, composition, classification, and uses. It begins by describing the introduction of sodium hyaluronate as the first OVD used in ophthalmic surgery in 1972. It then covers the ideal properties of an OVD and the rheological properties of viscosity, elasticity, coatability, and others. OVDs are classified as cohesive, dispersive, or viscoadaptive based on their molecular structure and behavior. The document discusses the advantages and uses of OVDs in cataract surgery, glaucoma surgery, keratoplasty, and other ophthalmic procedures. It concludes by outlining complications like
Fungal infections of eye cause one of the most dangerious infections. Accurate diagnosis and proper institution of anti-fungal therapy is essential. Here we discuss the various anti-fungal agents available to be used in ophthalmology.
This document summarizes recent advances in treating age-related macular degeneration (AMD). It discusses new drugs that aim to prevent retinal damage or slow AMD progression by inhibiting angiogenesis, inflammation, the complement pathway, oxidative stress, and retinal toxin accumulation. It also describes surgeries like maculoplasty and bionic eye implants, as well as rehabilitation techniques and low vision aids. Promising new drug classes discussed include anti-angiogenics, complement inhibitors, neurotrophic factors, and antioxidants.
UBM and ASOCT provide high-resolution cross-sectional images of the anterior segment including the cornea, anterior chamber, angle, and iris. ASOCT uses optical coherence tomography with a wavelength of 1310nm for improved penetration and reduced retinal damage compared to posterior segment OCT. It allows high-speed imaging of dynamic structures. ASOCT has applications in assessing corneal diseases and procedures, glaucoma (including angle anatomy and iridotomy evaluation), and intraocular lens implantation. Measurements of angle width parameters help evaluate angle closure risk. While valuable for objective angle assessment, ASOCT cannot image all anatomical structures involved in glaucoma.
This document provides guidance on managing failing blebs after glaucoma surgery. It discusses risk factors for bleb failure, the histology of functioning vs failed blebs, typical appearances of failed blebs, identifying the cause of failure as internal or external blockage, and various management techniques. These include increasing digital pressure, medications, laser suture lysis, and bleb needling with or without anti-metabolites like mitomycin C or 5-fluorouracil to restore bleb function and control intraocular pressure. Complications of bleb needling are also reviewed.
This document discusses target intraocular pressure (IOP) for treating glaucoma. It defines target IOP as the upper limit of IOP that prevents further glaucoma damage. Establishing an individualized target IOP is important to slow retinal ganglion cell loss and glaucoma progression over a patient's lifetime with minimal effects on quality of life. The target IOP should be based on factors like the amount of existing eye damage, maximum past IOP levels, life expectancy, and risk factors. The target is dynamic and must be reevaluated periodically, lowering it if damage progresses or raising it if side effects occur from low IOP. Clinical studies show that greater IOP reductions correlate with less glaucoma progression
This document discusses new drugs and therapies for glaucoma that are currently in development. It outlines several novel drug targets and mechanisms of action that are being investigated, including ROCK inhibitors, adenosine receptor agonists, BkCa channel modulators, siRNAs, cannabinoids, and local calcium channel blockers. It also discusses neuroprotective strategies such as antioxidants, memantine, neurotrophic growth factors, gene therapy, and stem cell therapy that aim to prevent further neural damage in glaucoma. Overall, the document provides an overview of the many innovative approaches that are being researched to better treat glaucoma beyond current first-line therapies.
This document discusses various antifibrotic agents used in ophthalmology, including 5-fluorouracil, mitomycin C, and amniotic membrane. 5-fluorouracil inhibits DNA synthesis to reduce fibroblast proliferation and is used after glaucoma surgery and for ocular surface tumors. Mitomycin C inhibits cell proliferation and is applied during pterygium removal and glaucoma surgery to prevent scarring. Amniotic membrane promotes wound healing and inhibits scarring. It is used for ocular surface reconstruction after injuries or surgery.
This document discusses ophthalmic viscosurgical devices (OVDs), including their history, properties, composition, classification, and uses. It begins by describing the introduction of sodium hyaluronate as the first OVD used in ophthalmic surgery in 1972. It then covers the ideal properties of an OVD and the rheological properties of viscosity, elasticity, coatability, and others. OVDs are classified as cohesive, dispersive, or viscoadaptive based on their molecular structure and behavior. The document discusses the advantages and uses of OVDs in cataract surgery, glaucoma surgery, keratoplasty, and other ophthalmic procedures. It concludes by outlining complications like
Fungal infections of eye cause one of the most dangerious infections. Accurate diagnosis and proper institution of anti-fungal therapy is essential. Here we discuss the various anti-fungal agents available to be used in ophthalmology.
This document summarizes recent advances in treating age-related macular degeneration (AMD). It discusses new drugs that aim to prevent retinal damage or slow AMD progression by inhibiting angiogenesis, inflammation, the complement pathway, oxidative stress, and retinal toxin accumulation. It also describes surgeries like maculoplasty and bionic eye implants, as well as rehabilitation techniques and low vision aids. Promising new drug classes discussed include anti-angiogenics, complement inhibitors, neurotrophic factors, and antioxidants.
UBM and ASOCT provide high-resolution cross-sectional images of the anterior segment including the cornea, anterior chamber, angle, and iris. ASOCT uses optical coherence tomography with a wavelength of 1310nm for improved penetration and reduced retinal damage compared to posterior segment OCT. It allows high-speed imaging of dynamic structures. ASOCT has applications in assessing corneal diseases and procedures, glaucoma (including angle anatomy and iridotomy evaluation), and intraocular lens implantation. Measurements of angle width parameters help evaluate angle closure risk. While valuable for objective angle assessment, ASOCT cannot image all anatomical structures involved in glaucoma.
This document provides guidance on managing failing blebs after glaucoma surgery. It discusses risk factors for bleb failure, the histology of functioning vs failed blebs, typical appearances of failed blebs, identifying the cause of failure as internal or external blockage, and various management techniques. These include increasing digital pressure, medications, laser suture lysis, and bleb needling with or without anti-metabolites like mitomycin C or 5-fluorouracil to restore bleb function and control intraocular pressure. Complications of bleb needling are also reviewed.
This document discusses target intraocular pressure (IOP) for treating glaucoma. It defines target IOP as the upper limit of IOP that prevents further glaucoma damage. Establishing an individualized target IOP is important to slow retinal ganglion cell loss and glaucoma progression over a patient's lifetime with minimal effects on quality of life. The target IOP should be based on factors like the amount of existing eye damage, maximum past IOP levels, life expectancy, and risk factors. The target is dynamic and must be reevaluated periodically, lowering it if damage progresses or raising it if side effects occur from low IOP. Clinical studies show that greater IOP reductions correlate with less glaucoma progression
Glaucoma drainage devices (GDDs) work by creating an alternate pathway for aqueous outflow from the anterior chamber through a silicone tube to a plate under the conjunctiva where fluid is absorbed. The Ahmed valve and Baerveldt implant are two commonly used valved and non-valved devices, respectively. The Ahmed valve uses silicone leaflets to allow one-way flow above a certain pressure threshold, while the Baerveldt implant relies on a fibrous capsule formation around its plate for resistance to outflow. GDDs are indicated for refractory glaucoma when other surgeries have failed.
This document discusses corticosteroids and their use in ophthalmology. It begins by describing the basic structure and functions of steroids produced naturally in the body. It then outlines the history of corticosteroid discovery and use in medicine, including their introduction to ocular therapy in the 1950s. The document goes on to explain the mechanisms of action of corticosteroids and their effects on inflammation. It provides details on the administration, pharmacokinetics, efficacy and side effects of systemic corticosteroid use as well as topical ocular administration through eye drops, ointments and injections. Guidelines are given for dosing and monitoring patients on long-term corticosteroid therapy.
This document provides an overview of polypoidal choroidal vasculopathy (PCV), including its history, definitions, pathogenesis, histopathology, demographics, clinical features, investigations, differential diagnosis, classification, treatment and guidelines. PCV is characterized by polyp-like subretinal vascular lesions associated with hemorrhagic detachments of the retinal pigment epithelium. Indocyanine green angiography is the gold standard for diagnosis, showing focal hyperfluorescence arising from the choroidal circulation within minutes. Treatment options include observation, thermal laser photocoagulation, photodynamic therapy, anti-VEGF therapy and combination therapies.
Ophthalmic viscosurgical devices (OVDs) are used in eye surgeries to protect tissues and maintain spaces. Common OVDs include sodium hyaluronate, chondroitin sulfate, and hydroxypropyl methylcellulose. OVDs can be classified as cohesive, dispersive, or viscoadaptive based on their rheological properties such as viscosity and elasticity. Cohesive OVDs are highly viscous and stick together, while dispersive OVDs coat tissues well but are less viscous. OVDs are used in cataract surgery for tasks like protecting the endothelium, maintaining the anterior chamber, and implanting IOLs. Complications can include increased intraocular
This document discusses various classes of antibiotics used in ophthalmology, including their mechanisms of action, spectra of activity, therapeutic uses, and adverse effects. It covers beta-lactam antibiotics like penicillins, cephalosporins, carbapenems, and monobactams. It also discusses non-beta lactam antibiotics like chloramphenicol. Common ocular infections treated include conjunctivitis, keratitis, endophthalmitis, and blepharitis, with treatment depending on the causative organism. While effective against many bacteria, antibiotics require careful use due to potential adverse reactions and development of resistance.
Immunosuppressive agents in ophthalmologyTina Chandar
This document discusses various immunosuppressive agents used in ophthalmology, including their mechanisms of action, clinical indications, dosages, and potential adverse effects. It covers alkylating agents like cyclophosphamide and chlorambucil, antimetabolites like azathioprine and methotrexate, the antibiotic cyclosporin A, and newer agents like tacrolimus, daclizumab, and infliximab. Monitoring of blood counts is important when using these drugs due to risks of bone marrow suppression, infections, and other toxicities. Careful dosage adjustment and patient follow up is needed with immunosuppressive therapy for ocular conditions.
This document discusses various vitreous substitutes and intraocular gases used to replace the vitreous humor after surgery. It describes the anatomy and composition of the natural vitreous and ideal properties for substitutes. Common substitutes discussed include gases like air, sulfur hexafluoride and perfluorocarbons; liquids like silicone oil, perfluorocarbon liquids and semi-fluorinated alkanes; and experimental polymers and implants. The document compares different options and provides details on how each works, associated complications, and appropriate uses.
1) Research into using ROCK inhibitors to treat glaucoma began in the late 1990s and focused on their role in regulating the aqueous humour outflow pathways and lowering intraocular pressure.
2) Several ROCK inhibitors have been studied including SNJ-1656, AR-12286, Ripasudil, and Netarsudil. They lower IOP by decreasing outflow resistance but Netarsudil also lowers production and episcleral venous pressure.
3) Netarsudil was approved by the FDA in 2017 and clinical trials found it lowers IOP similarly to latanoprost, especially in patients with lower baseline pressures.
This document discusses the use of lasers in the treatment of glaucoma. It begins by introducing different types of lasers used, including Nd:YAG lasers. It then covers specific laser procedures for glaucoma such as laser iridotomy to relieve pupillary block, laser iridoplasty to modify the iris, and laser trabeculoplasty to increase outflow. It compares argon laser trabeculoplasty to selective laser trabeculoplasty. The document also discusses laser techniques for angle closure glaucoma, post-operative treatment, and cyclophotocoagulation to reduce aqueous production. Throughout, it provides details on laser parameters and outcomes of these procedures.
Peripheral fundus & its disorders
Presented by Dr Rohit Rao
This document summarizes the key anatomical structures and pathologies of the peripheral retina. It describes the ora serrata, pars plana, vitreous base, dentate processes, meridional folds, and other peripheral features. It then discusses various degenerative conditions like lattice degeneration, retinoschisis, and pavingstone degeneration. Treatment options for retinal breaks including cryopexy and laser photocoagulation are also summarized.
This document summarizes a journal article on toxic anterior segment syndrome (TASS). TASS is a non-infectious inflammatory reaction caused by a toxic substance entering the anterior segment during eye surgery. Common causes include preservatives inadvertently injected into the eye, detergents or residues left on instruments, and contaminated water or solutions. TASS presents with pain, blurred vision, eye redness, and severe anterior segment inflammation including corneal edema and hypopyon. Treatment involves topical steroids, but prevention through proper sterilization and use of preservative-free solutions is key to avoiding this complication.
Vascular endothelial growth factors promote neovascularization and break the blood-retinal barrier. Anti-vascular endothelial growth factor (anti-VEGF) therapies block VEGF's actions, decreasing abnormal new blood vessel formation and retinal leakage/swelling. This stabilizes vision and may improve it. Bevacizumab, ranibizumab, and aflibercept are examples of anti-VEGF drugs used intravitreally to treat wet age-related macular degeneration, diabetic retinopathy, retinal vein occlusion and other conditions. While effective, anti-VEGF therapies require frequent injections and monitoring for side effects like increased intraocular pressure.
Nd: YAG laser posterior capsulotomy is a common laser procedure used to treat posterior capsule opacification after cataract surgery. It involves using a Nd: YAG laser to create an opening in the clouded posterior capsule. The laser works by photodisruption of tissue at the capsular opening site. Complications can include temporary rise in intraocular pressure, cystoid macular edema, and rarely retinal detachment. Proper technique and postoperative care such as use of eye drops can help reduce risks of complications from the procedure.
Vitreous substitutes are substances used during vitreoretinal surgery to re-establish intraocular volume, assist with separating membranes from the retina, and manipulate and flatten detached retina. They are also used postoperatively as long-term tamponading agents to maintain the retina in apposition. Common vitreous substitutes used include balanced salt solution, air, viscoelastic fluids, silicone liquid, and perfluorocarbon liquids. Gases such as air, SF6, and C3F8 are employed during retinal detachment surgery to provide internal tamponade and are chosen based on their duration, expansion properties, and buoyancy effects. Complications can include increased intraocular pressure, lens opac
This document discusses ocular hypertension. It begins by defining ocular hypertension and noting that distinguishing it from early glaucoma can be difficult. It then discusses the epidemiology, risk factors, diagnosis, investigations, treatment, and the Ocular Hypertension Treatment Study (OHTS). The OHTS was a landmark study that showed topical ocular hypotensive medication can delay or prevent the onset of glaucoma in patients with ocular hypertension. It identified several risk factors for progression to glaucoma, including older age, higher eye pressure, larger optic discs, thinner corneas, and abnormal visual fields.
This document discusses the diagnosis of pre-perimetric glaucoma. It begins by defining pre-perimetric glaucoma as optic nerve abnormalities seen on structural tests with normal visual fields. It then discusses the need for early diagnosis before functional changes occur. Various functional tests are described like standard automated perimetry, short wavelength automated perimetry, frequency doubling technology, and others. Structural tests like confocal scanning laser ophthalmoscopy, optical coherence tomography, and their principles are summarized.
This document summarizes various classes of anti-glaucoma medications, including their mechanisms of action and examples of drugs. It focuses on prostaglandins, describing how latanoprost, bimatoprost, and travoprost work. It also discusses adrenergic medications, carbonic anhydrase inhibitors, cholinergic drugs, and hyperosmotic agents for treating glaucoma. Side effects are provided for each class.
This document discusses the medical management of glaucoma. It covers principles of diagnosis and assessment, results of clinical trials on glaucoma treatment, pharmacokinetics of topical drugs, educating patients, follow up, and various classes of anti-glaucoma medications including cholinergic stimulants, beta-blockers, alpha-adrenergic receptor antagonists, prostaglandin analogs, and carbonic anhydrase inhibitors. Side effects and administration of these drug classes are also outlined.
This document discusses ocular NSAIDs and steroids, their uses, and indications. It begins with an introduction to inflammation and the inflammatory response. It then discusses the mechanisms of action of NSAIDs, including their inhibition of prostaglandin synthesis. Various topical ocular NSAIDs are presented, along with their indications for use in preoperative miosis prevention, postoperative inflammation, cystoid macular edema, conjunctivitis, corneal pain, and other conditions. Dosing regimens are provided for common NSAID medications.
This document summarizes several landmark clinical trials related to diabetic retinopathy. It discusses trials evaluating metabolic control like the DCCT and UKPDS, laser photocoagulation trials like DRS and ETDRS, vitrectomy trials like DRVS, and recent anti-VEGF trials. It also summarizes protocols from the Diabetic Retinopathy Clinical Research Network evaluating treatments for diabetic macular edema and proliferative diabetic retinopathy.
Implications for Immunotherapy of Acute Radiation Syndromes.Dmitri Popov
This document discusses the effects of radiation on immune systems and antigenic properties of tissues. It provides background on how radiation can induce cell death and damage, triggering immune responses. Studies discussed show that radiation can change the antigenic composition and properties of tissues, making them more immunogenic. Radiation is found to increase antigen processing in tumor cells and increase their susceptibility to immune cell killing. The document examines how radiation affects the antigenic properties of both normal and tumor tissues.
1) Hypothermia therapy involves cooling infants with hypoxic-ischemic encephalopathy to 33-35°C for 72 hours and is the standard treatment. It decreases cerebral metabolic rate and excitotoxic neurotransmitter release, reducing apoptosis, edema, and injury.
2) Other promising neuroprotective strategies include oxygen free radical inhibitors, calcium channel blockers, erythropoietin, excitatory amino acid antagonists like magnesium, preventing excess nitric oxide formation, attenuating apoptosis, and stem cell transplantation.
3) While hypothermia therapy reduces mortality and disability, ongoing research aims to develop more effective combination therapies targeting multiple injury mechanisms.
Glaucoma drainage devices (GDDs) work by creating an alternate pathway for aqueous outflow from the anterior chamber through a silicone tube to a plate under the conjunctiva where fluid is absorbed. The Ahmed valve and Baerveldt implant are two commonly used valved and non-valved devices, respectively. The Ahmed valve uses silicone leaflets to allow one-way flow above a certain pressure threshold, while the Baerveldt implant relies on a fibrous capsule formation around its plate for resistance to outflow. GDDs are indicated for refractory glaucoma when other surgeries have failed.
This document discusses corticosteroids and their use in ophthalmology. It begins by describing the basic structure and functions of steroids produced naturally in the body. It then outlines the history of corticosteroid discovery and use in medicine, including their introduction to ocular therapy in the 1950s. The document goes on to explain the mechanisms of action of corticosteroids and their effects on inflammation. It provides details on the administration, pharmacokinetics, efficacy and side effects of systemic corticosteroid use as well as topical ocular administration through eye drops, ointments and injections. Guidelines are given for dosing and monitoring patients on long-term corticosteroid therapy.
This document provides an overview of polypoidal choroidal vasculopathy (PCV), including its history, definitions, pathogenesis, histopathology, demographics, clinical features, investigations, differential diagnosis, classification, treatment and guidelines. PCV is characterized by polyp-like subretinal vascular lesions associated with hemorrhagic detachments of the retinal pigment epithelium. Indocyanine green angiography is the gold standard for diagnosis, showing focal hyperfluorescence arising from the choroidal circulation within minutes. Treatment options include observation, thermal laser photocoagulation, photodynamic therapy, anti-VEGF therapy and combination therapies.
Ophthalmic viscosurgical devices (OVDs) are used in eye surgeries to protect tissues and maintain spaces. Common OVDs include sodium hyaluronate, chondroitin sulfate, and hydroxypropyl methylcellulose. OVDs can be classified as cohesive, dispersive, or viscoadaptive based on their rheological properties such as viscosity and elasticity. Cohesive OVDs are highly viscous and stick together, while dispersive OVDs coat tissues well but are less viscous. OVDs are used in cataract surgery for tasks like protecting the endothelium, maintaining the anterior chamber, and implanting IOLs. Complications can include increased intraocular
This document discusses various classes of antibiotics used in ophthalmology, including their mechanisms of action, spectra of activity, therapeutic uses, and adverse effects. It covers beta-lactam antibiotics like penicillins, cephalosporins, carbapenems, and monobactams. It also discusses non-beta lactam antibiotics like chloramphenicol. Common ocular infections treated include conjunctivitis, keratitis, endophthalmitis, and blepharitis, with treatment depending on the causative organism. While effective against many bacteria, antibiotics require careful use due to potential adverse reactions and development of resistance.
Immunosuppressive agents in ophthalmologyTina Chandar
This document discusses various immunosuppressive agents used in ophthalmology, including their mechanisms of action, clinical indications, dosages, and potential adverse effects. It covers alkylating agents like cyclophosphamide and chlorambucil, antimetabolites like azathioprine and methotrexate, the antibiotic cyclosporin A, and newer agents like tacrolimus, daclizumab, and infliximab. Monitoring of blood counts is important when using these drugs due to risks of bone marrow suppression, infections, and other toxicities. Careful dosage adjustment and patient follow up is needed with immunosuppressive therapy for ocular conditions.
This document discusses various vitreous substitutes and intraocular gases used to replace the vitreous humor after surgery. It describes the anatomy and composition of the natural vitreous and ideal properties for substitutes. Common substitutes discussed include gases like air, sulfur hexafluoride and perfluorocarbons; liquids like silicone oil, perfluorocarbon liquids and semi-fluorinated alkanes; and experimental polymers and implants. The document compares different options and provides details on how each works, associated complications, and appropriate uses.
1) Research into using ROCK inhibitors to treat glaucoma began in the late 1990s and focused on their role in regulating the aqueous humour outflow pathways and lowering intraocular pressure.
2) Several ROCK inhibitors have been studied including SNJ-1656, AR-12286, Ripasudil, and Netarsudil. They lower IOP by decreasing outflow resistance but Netarsudil also lowers production and episcleral venous pressure.
3) Netarsudil was approved by the FDA in 2017 and clinical trials found it lowers IOP similarly to latanoprost, especially in patients with lower baseline pressures.
This document discusses the use of lasers in the treatment of glaucoma. It begins by introducing different types of lasers used, including Nd:YAG lasers. It then covers specific laser procedures for glaucoma such as laser iridotomy to relieve pupillary block, laser iridoplasty to modify the iris, and laser trabeculoplasty to increase outflow. It compares argon laser trabeculoplasty to selective laser trabeculoplasty. The document also discusses laser techniques for angle closure glaucoma, post-operative treatment, and cyclophotocoagulation to reduce aqueous production. Throughout, it provides details on laser parameters and outcomes of these procedures.
Peripheral fundus & its disorders
Presented by Dr Rohit Rao
This document summarizes the key anatomical structures and pathologies of the peripheral retina. It describes the ora serrata, pars plana, vitreous base, dentate processes, meridional folds, and other peripheral features. It then discusses various degenerative conditions like lattice degeneration, retinoschisis, and pavingstone degeneration. Treatment options for retinal breaks including cryopexy and laser photocoagulation are also summarized.
This document summarizes a journal article on toxic anterior segment syndrome (TASS). TASS is a non-infectious inflammatory reaction caused by a toxic substance entering the anterior segment during eye surgery. Common causes include preservatives inadvertently injected into the eye, detergents or residues left on instruments, and contaminated water or solutions. TASS presents with pain, blurred vision, eye redness, and severe anterior segment inflammation including corneal edema and hypopyon. Treatment involves topical steroids, but prevention through proper sterilization and use of preservative-free solutions is key to avoiding this complication.
Vascular endothelial growth factors promote neovascularization and break the blood-retinal barrier. Anti-vascular endothelial growth factor (anti-VEGF) therapies block VEGF's actions, decreasing abnormal new blood vessel formation and retinal leakage/swelling. This stabilizes vision and may improve it. Bevacizumab, ranibizumab, and aflibercept are examples of anti-VEGF drugs used intravitreally to treat wet age-related macular degeneration, diabetic retinopathy, retinal vein occlusion and other conditions. While effective, anti-VEGF therapies require frequent injections and monitoring for side effects like increased intraocular pressure.
Nd: YAG laser posterior capsulotomy is a common laser procedure used to treat posterior capsule opacification after cataract surgery. It involves using a Nd: YAG laser to create an opening in the clouded posterior capsule. The laser works by photodisruption of tissue at the capsular opening site. Complications can include temporary rise in intraocular pressure, cystoid macular edema, and rarely retinal detachment. Proper technique and postoperative care such as use of eye drops can help reduce risks of complications from the procedure.
Vitreous substitutes are substances used during vitreoretinal surgery to re-establish intraocular volume, assist with separating membranes from the retina, and manipulate and flatten detached retina. They are also used postoperatively as long-term tamponading agents to maintain the retina in apposition. Common vitreous substitutes used include balanced salt solution, air, viscoelastic fluids, silicone liquid, and perfluorocarbon liquids. Gases such as air, SF6, and C3F8 are employed during retinal detachment surgery to provide internal tamponade and are chosen based on their duration, expansion properties, and buoyancy effects. Complications can include increased intraocular pressure, lens opac
This document discusses ocular hypertension. It begins by defining ocular hypertension and noting that distinguishing it from early glaucoma can be difficult. It then discusses the epidemiology, risk factors, diagnosis, investigations, treatment, and the Ocular Hypertension Treatment Study (OHTS). The OHTS was a landmark study that showed topical ocular hypotensive medication can delay or prevent the onset of glaucoma in patients with ocular hypertension. It identified several risk factors for progression to glaucoma, including older age, higher eye pressure, larger optic discs, thinner corneas, and abnormal visual fields.
This document discusses the diagnosis of pre-perimetric glaucoma. It begins by defining pre-perimetric glaucoma as optic nerve abnormalities seen on structural tests with normal visual fields. It then discusses the need for early diagnosis before functional changes occur. Various functional tests are described like standard automated perimetry, short wavelength automated perimetry, frequency doubling technology, and others. Structural tests like confocal scanning laser ophthalmoscopy, optical coherence tomography, and their principles are summarized.
This document summarizes various classes of anti-glaucoma medications, including their mechanisms of action and examples of drugs. It focuses on prostaglandins, describing how latanoprost, bimatoprost, and travoprost work. It also discusses adrenergic medications, carbonic anhydrase inhibitors, cholinergic drugs, and hyperosmotic agents for treating glaucoma. Side effects are provided for each class.
This document discusses the medical management of glaucoma. It covers principles of diagnosis and assessment, results of clinical trials on glaucoma treatment, pharmacokinetics of topical drugs, educating patients, follow up, and various classes of anti-glaucoma medications including cholinergic stimulants, beta-blockers, alpha-adrenergic receptor antagonists, prostaglandin analogs, and carbonic anhydrase inhibitors. Side effects and administration of these drug classes are also outlined.
This document discusses ocular NSAIDs and steroids, their uses, and indications. It begins with an introduction to inflammation and the inflammatory response. It then discusses the mechanisms of action of NSAIDs, including their inhibition of prostaglandin synthesis. Various topical ocular NSAIDs are presented, along with their indications for use in preoperative miosis prevention, postoperative inflammation, cystoid macular edema, conjunctivitis, corneal pain, and other conditions. Dosing regimens are provided for common NSAID medications.
This document summarizes several landmark clinical trials related to diabetic retinopathy. It discusses trials evaluating metabolic control like the DCCT and UKPDS, laser photocoagulation trials like DRS and ETDRS, vitrectomy trials like DRVS, and recent anti-VEGF trials. It also summarizes protocols from the Diabetic Retinopathy Clinical Research Network evaluating treatments for diabetic macular edema and proliferative diabetic retinopathy.
Implications for Immunotherapy of Acute Radiation Syndromes.Dmitri Popov
This document discusses the effects of radiation on immune systems and antigenic properties of tissues. It provides background on how radiation can induce cell death and damage, triggering immune responses. Studies discussed show that radiation can change the antigenic composition and properties of tissues, making them more immunogenic. Radiation is found to increase antigen processing in tumor cells and increase their susceptibility to immune cell killing. The document examines how radiation affects the antigenic properties of both normal and tumor tissues.
1) Hypothermia therapy involves cooling infants with hypoxic-ischemic encephalopathy to 33-35°C for 72 hours and is the standard treatment. It decreases cerebral metabolic rate and excitotoxic neurotransmitter release, reducing apoptosis, edema, and injury.
2) Other promising neuroprotective strategies include oxygen free radical inhibitors, calcium channel blockers, erythropoietin, excitatory amino acid antagonists like magnesium, preventing excess nitric oxide formation, attenuating apoptosis, and stem cell transplantation.
3) While hypothermia therapy reduces mortality and disability, ongoing research aims to develop more effective combination therapies targeting multiple injury mechanisms.
This document summarizes anti-adrenergic or sympatholytic drugs. It discusses how these drugs block the actions of circulating catecholamines and inhibit effects of adrenergic nerve stimulation by antagonizing alpha-1 and alpha-2 receptors. It provides details on the types and mechanisms of various alpha-adrenergic antagonists including non-selective, alpha-1 selective, and alpha-2 selective drugs. The clinical uses of these drugs are in conditions like pheochromocytoma, hypertension, peripheral vascular disease, benign prostatic hyperplasia, and erectile dysfunction. Adverse effects include postural hypotension, tachycardia, and nasal congestion.
This document discusses essential drugs that should be included in a dental emergency kit. It outlines drugs for oxygen supplementation, treating allergic reactions like adrenaline and chlorpheniramine, managing chest pain with nitrates, and relieving respiratory distress with salbutamol. Additional drugs covered include nitrous oxide, anticonvulsants, vasopressors, antihypoglycemics, corticosteroids, atropine, and aromatic ammonia. Drugs for advanced cardiovascular support as well as antidotes are also mentioned. The document provides information on the uses, availability, dosing, and contraindications of these important emergency medications.
Corticosteroids have anti-inflammatory and immunosuppressive properties that make them useful in treating oral diseases. They are commonly used topically, intralesionally, systemically, or via pulsed therapy depending on the severity and location of the condition. Topical corticosteroids are generally safe and effective for mild to moderate oral diseases. Systemic corticosteroids carry more risks but may be needed for widespread or severe cases. Careful diagnosis, minimum effective dosing, and tapering are important to maximize benefits and minimize adverse effects of corticosteroid therapy.
Hypothermia therapy is the standard treatment for hypoxic ischemic encephalopathy (HIE). Mild hypothermia between 34-35°C is initiated within 6 hours and continued for at least 72 hours. This decreases cerebral metabolic rate, excitatory neurotransmitter release, apoptosis, and vascular permeability. Hypothermia reduces mortality and neurodevelopmental disability in HIE. Other promising therapies target oxidative stress, calcium channels, excitatory amino acids, nitric oxide, and apoptosis, but require further study. Stem cell transplantation may also have potential as a future regenerative therapy for HIE.
This document discusses pituitary gland disorders and anesthetic management. Key points include:
1. Pituitary tumors can cause hormonal imbalances and compression of surrounding structures, requiring careful perioperative management.
2. Patients may have hypopituitarism requiring steroid supplementation or acromegaly/Cushing's disease resulting in distinctive physical features and comorbidities.
3. Anesthesiologists must consider each patient's specific hormonal status and tumor effects when planning airway management and hemodynamic support for pituitary surgery.
The document discusses drug toxicology and summarizes key points about common drugs that cause poisoning. It lists antihistamines, analgesics, vitamins, minerals, flu medications, hormones, and antibiotics as frequently causing poisoning. It then rates different levels of toxicity based on dosage and provides the lethal dosage ranges for different toxicity categories. Several factors that determine a drug's toxicity are outlined, along with common toxic effects of different drug classes. Methods for treating poisonings like decontamination, increasing elimination, and use of antidotes are summarized. Specific details are provided about toxicology and treatment of paracetamol/acetaminophen and aspirin poisoning.
recent advances in pharmacotherapy of Glaucoma DrShrey Bhatia
new drugs, potential targets, recent trends for glaucoma treatment. important new target have been discussed along with current therapies. good enough for post graduate teaching and undergraduate classes.
The urea cycle disorders result from genetic mutations causing defects in the metabolism of extra nitrogen from protein breakdown. There are six enzymes in the urea cycle that convert ammonia into urea for excretion. Deficiencies in the first three enzymes (CPS1, OTC, ASS) or the cofactor NAGS cause severe hyperammonemia in newborns. Symptoms include irritability, lethargy, coma, hypothermia, and seizures. Treatment involves removing protein, giving nitrogen-scavenging drugs like sodium benzoate and sodium phenylacetate, arginine supplementation, and supportive care. Long-term management includes a low-protein diet and monitoring for complications.
Disease modifying anti rheumatoid drugs in rheumatoid arhtritisBipulBorthakur
This document discusses disease modifying anti-rheumatic drugs (DMARDs) for the treatment of rheumatoid arthritis (RA). It defines RA as a long-lasting autoimmune disorder that primarily affects the joints, causing warm, swollen and painful joints, most commonly in the wrists and hands. DMARDs are drugs that must change the course of RA for at least one year by improving physical function, decreasing inflammation, and slowing structural joint damage. The document describes conventional DMARDs like methotrexate, sulfasalazine, hydroxychloroquine, leflunomide, minocycline and cyclosporine. It provides dosing guidelines and lists common side effects for each drug. The document also
Newer Trends and Recent Advances in Parasympathomimetics and parasympatholyticsShubham Marbade
It describes about newer trends and Recent Advances in Parasympathomimetics and parasympatholytics and their mechanism of actions
by Shubham marbade
Department of Pharmacology
APPROACH TO RICKETTSIAL INFECTIONS-2.pptxvikas reddy
This document discusses rickettsial infections, which are emerging infectious diseases caused by motile, intracellular bacteria transmitted by ticks, mites, and fleas. It outlines the classification, transmission, pathophysiology, clinical presentation, diagnosis, and treatment of rickettsial infections. Key points include that early treatment with doxycycline or azithromycin is important for better outcomes, as symptoms are initially non-specific but can progress to involve multiple organs with fatality rates over 30% if untreated. Diagnosis involves clinical suspicion based on exposure history plus supportive lab findings and serology.
This document discusses sulfonamides and cotrimoxazole (a combination of trimethoprim and sulfamethoxazole). It describes their chemistry, classification, antimicrobial spectrum, mechanisms of action, resistance, pharmacokinetics, adverse effects and therapeutic uses. Sulfonamides were the first effective antimicrobials against pyogenic meningitis and are derivatives of sulfanilamide. Cotrimoxazole has activity against a broader range of organisms than sulfonamides alone due to their synergistic action. Both are well absorbed orally and widely used for urinary tract, respiratory, and gastrointestinal infections. Adverse effects include rashes, hematuria, and megaloblastic anemia
This document summarizes different types of antiplatelet drugs. It discusses how platelet aggregation occurs through interactions between collagen, platelet receptors, and release of substances like thromboxane A2 and ADP. It then categorizes main classes of antiplatelet drugs as aspirin, dipyridamole, P2Y12 receptor blockers like clopidogrel and prasugrel, and GP IIb/IIIa receptor antagonists like abciximab, eptifibatide, and tirofiban. For each drug, it provides information on mechanism of action, pharmacokinetics, clinical uses, and side effects. The overall document provides a concise overview of the mechanisms and classes of
This document discusses fluid, electrolyte and acid-base balance. It covers topics like fluid intake and output, water balance, sodium, potassium, calcium and acid-base balance. Key points include:
- Infants and children have higher fluid requirements due to larger surface area and immature kidneys.
- Fluid intake is around 2-3 liters per day for adults, with output through lungs, skin, feces and urine of around 1500ml per day.
- Electrolyte abnormalities can cause various clinical symptoms and need to be treated by correcting underlying causes and restoring electrolyte levels slowly.
- Acid-base balance is maintained through respiratory and renal systems to balance pH, PCO2
This document provides an overview of the endocrine system. It discusses how hormones act as chemical messengers to regulate physiological functions through feedback loops. The endocrine and nervous systems are compared, with the endocrine system using hormones transported via blood to target distant cells, while the nervous system uses electrical signals. The types and classifications of hormones are outlined, as well as their mechanisms of action through receptors, membrane permeability changes, gene expression effects, and second messenger systems. Methods for measuring hormone levels like bioassays, immunoassays, and dynamic tests are also summarized. Pathologies resulting from over or under production of hormones and issues related to receptors are briefly described.
NEONATAL JAUNDICE IS MOST COMMON CAUSE OF MORBIDITY IN 1ST WEEK OF LIFE IT IS ALSO MOST COMMON CAUSE OF READMISSION AFTER DISCHARGE .THIS BEAUTIFUL SLIDE FOR NNJ.
This document provides information on organophosphorus poisoning including diagnosis, management, and complications/treatment. It discusses how diagnosis is based on exposure history and symptoms improving with atropine. Management involves decontamination, blocking muscarinic activity with atropine, reversing cholinesterase inhibition with pralidoxime, and supportive care. Complications can affect the cardiovascular, central nervous, and respiratory systems. Different types of paralysis may occur at different stages requiring various treatments.
Similar to Newer drugs in management of glaucoma (20)
Scleral contact lenses , types, uses in various ocular conditions.
An in-depth and unbiased details of these lenses as a therapeutic and also as a drug - delivery system in modern ophthalmology.
A must read for all Ophthalmologists and Optometrists.
The document summarizes common tests used to evaluate dry eye severity, including questionnaires, tear film tests, staining, and inflammatory markers. The OSDI questionnaire and Schirmer's test assess tear production. Tear breakup time and height evaluate tear film stability. Staining assesses ocular surface damage. Hyperosmolarity and inflammatory markers help identify dry eye pathogenesis. A variety of tests are needed to fully characterize dry eye and guide treatment.
Prevention of Intraocular Infection in Pre-op and Post-op Ocular ConditionsDrArvindMorya
EVERY MINUTE DETAIL ON DIFFERENT METHODS , TECHNIQUE AND PROTOCOLS TO BE FOLLOWED TO PREVENT INTRAOCULAR INFECTIONS DURING EVERY PHASE OF SURGERIES. COVERING PROTOCOLS DESIGNED BY AIOS AND WHO.
A detailed presentation covering all aspects of amblyopia, a form of cortical visual impairment, defined clinically as a unilateral or bilateral decrease of visual acuity (VA) that cannot be attributed to structural abnormalities of the eye or visual pathway
SIXTH CRANIAL NERVE PALSY- Diagnosis and managementDrArvindMorya
Cover the fixing eye
Examiner: Note movement of uncovered eye
- Esotropia in primary position
- Exotropia on looking towards affected side
- No movement on looking towards normal side
- Quantifies the deviation
- Helps in diagnosis and management
Past pointing test
- Patient asked to point with finger to target
- Deviation of finger from target indicates diplopia
- Helps in localizing the diplopia
Diplopia charting
- Patient asked to draw position of second image
- Helps in localizing and quantifying diplopia
Worth 4 dot test
- Assesses binocular single vision
- Loss of fusion indicates diplop
A presentation covering all aspects of Trachoma, one of the oldest infectious disease which is one of the leading causes of preventable blindness. Present day scenario and management.
Recomendações da OMS sobre cuidados maternos e neonatais para uma experiência pós-natal positiva.
Em consonância com os ODS – Objetivos do Desenvolvimento Sustentável e a Estratégia Global para a Saúde das Mulheres, Crianças e Adolescentes, e aplicando uma abordagem baseada nos direitos humanos, os esforços de cuidados pós-natais devem expandir-se para além da cobertura e da simples sobrevivência, de modo a incluir cuidados de qualidade.
Estas diretrizes visam melhorar a qualidade dos cuidados pós-natais essenciais e de rotina prestados às mulheres e aos recém-nascidos, com o objetivo final de melhorar a saúde e o bem-estar materno e neonatal.
Uma “experiência pós-natal positiva” é um resultado importante para todas as mulheres que dão à luz e para os seus recém-nascidos, estabelecendo as bases para a melhoria da saúde e do bem-estar a curto e longo prazo. Uma experiência pós-natal positiva é definida como aquela em que as mulheres, pessoas que gestam, os recém-nascidos, os casais, os pais, os cuidadores e as famílias recebem informação consistente, garantia e apoio de profissionais de saúde motivados; e onde um sistema de saúde flexível e com recursos reconheça as necessidades das mulheres e dos bebês e respeite o seu contexto cultural.
Estas diretrizes consolidadas apresentam algumas recomendações novas e já bem fundamentadas sobre cuidados pós-natais de rotina para mulheres e neonatos que recebem cuidados no pós-parto em unidades de saúde ou na comunidade, independentemente dos recursos disponíveis.
É fornecido um conjunto abrangente de recomendações para cuidados durante o período puerperal, com ênfase nos cuidados essenciais que todas as mulheres e recém-nascidos devem receber, e com a devida atenção à qualidade dos cuidados; isto é, a entrega e a experiência do cuidado recebido. Estas diretrizes atualizam e ampliam as recomendações da OMS de 2014 sobre cuidados pós-natais da mãe e do recém-nascido e complementam as atuais diretrizes da OMS sobre a gestão de complicações pós-natais.
O estabelecimento da amamentação e o manejo das principais intercorrências é contemplada.
Recomendamos muito.
Vamos discutir essas recomendações no nosso curso de pós-graduação em Aleitamento no Instituto Ciclos.
Esta publicação só está disponível em inglês até o momento.
Prof. Marcus Renato de Carvalho
www.agostodourado.com
Basavarajeeyam is an important text for ayurvedic physician belonging to andhra pradehs. It is a popular compendium in various parts of our country as well as in andhra pradesh. The content of the text was presented in sanskrit and telugu language (Bilingual). One of the most famous book in ayurvedic pharmaceutics and therapeutics. This book contains 25 chapters called as prakaranas. Many rasaoushadis were explained, pioneer of dhatu druti, nadi pareeksha, mutra pareeksha etc. Belongs to the period of 15-16 century. New diseases like upadamsha, phiranga rogas are explained.
Basavarajeeyam is a Sreshta Sangraha grantha (Compiled book ), written by Neelkanta kotturu Basavaraja Virachita. It contains 25 Prakaranas, First 24 Chapters related to Rogas& 25th to Rasadravyas.
Muktapishti is a traditional Ayurvedic preparation made from Shoditha Mukta (Purified Pearl), is believed to help regulate thyroid function and reduce symptoms of hyperthyroidism due to its cooling and balancing properties. Clinical evidence on its efficacy remains limited, necessitating further research to validate its therapeutic benefits.
Does Over-Masturbation Contribute to Chronic Prostatitis.pptxwalterHu5
In some case, your chronic prostatitis may be related to over-masturbation. Generally, natural medicine Diuretic and Anti-inflammatory Pill can help mee get a cure.
TEST BANK For Community Health Nursing A Canadian Perspective, 5th Edition by...Donc Test
TEST BANK For Community Health Nursing A Canadian Perspective, 5th Edition by Stamler, Verified Chapters 1 - 33, Complete Newest Version Community Health Nursing A Canadian Perspective, 5th Edition by Stamler, Verified Chapters 1 - 33, Complete Newest Version Community Health Nursing A Canadian Perspective, 5th Edition by Stamler Community Health Nursing A Canadian Perspective, 5th Edition TEST BANK by Stamler Test Bank For Community Health Nursing A Canadian Perspective, 5th Edition Pdf Chapters Download Test Bank For Community Health Nursing A Canadian Perspective, 5th Edition Pdf Download Stuvia Test Bank For Community Health Nursing A Canadian Perspective, 5th Edition Study Guide Test Bank For Community Health Nursing A Canadian Perspective, 5th Edition Ebook Download Stuvia Test Bank For Community Health Nursing A Canadian Perspective, 5th Edition Questions and Answers Quizlet Test Bank For Community Health Nursing A Canadian Perspective, 5th Edition Studocu Test Bank For Community Health Nursing A Canadian Perspective, 5th Edition Quizlet Test Bank For Community Health Nursing A Canadian Perspective, 5th Edition Stuvia Community Health Nursing A Canadian Perspective, 5th Edition Pdf Chapters Download Community Health Nursing A Canadian Perspective, 5th Edition Pdf Download Course Hero Community Health Nursing A Canadian Perspective, 5th Edition Answers Quizlet Community Health Nursing A Canadian Perspective, 5th Edition Ebook Download Course hero Community Health Nursing A Canadian Perspective, 5th Edition Questions and Answers Community Health Nursing A Canadian Perspective, 5th Edition Studocu Community Health Nursing A Canadian Perspective, 5th Edition Quizlet Community Health Nursing A Canadian Perspective, 5th Edition Stuvia Community Health Nursing A Canadian Perspective, 5th Edition Test Bank Pdf Chapters Download Community Health Nursing A Canadian Perspective, 5th Edition Test Bank Pdf Download Stuvia Community Health Nursing A Canadian Perspective, 5th Edition Test Bank Study Guide Questions and Answers Community Health Nursing A Canadian Perspective, 5th Edition Test Bank Ebook Download Stuvia Community Health Nursing A Canadian Perspective, 5th Edition Test Bank Questions Quizlet Community Health Nursing A Canadian Perspective, 5th Edition Test Bank Studocu Community Health Nursing A Canadian Perspective, 5th Edition Test Bank Quizlet Community Health Nursing A Canadian Perspective, 5th Edition Test Bank Stuvia
- Video recording of this lecture in English language: https://youtu.be/kqbnxVAZs-0
- Video recording of this lecture in Arabic language: https://youtu.be/SINlygW1Mpc
- Link to download the book free: https://nephrotube.blogspot.com/p/nephrotube-nephrology-books.html
- Link to NephroTube website: www.NephroTube.com
- Link to NephroTube social media accounts: https://nephrotube.blogspot.com/p/join-nephrotube-on-social-media.html
share - Lions, tigers, AI and health misinformation, oh my!.pptxTina Purnat
• Pitfalls and pivots needed to use AI effectively in public health
• Evidence-based strategies to address health misinformation effectively
• Building trust with communities online and offline
• Equipping health professionals to address questions, concerns and health misinformation
• Assessing risk and mitigating harm from adverse health narratives in communities, health workforce and health system
Here is the updated list of Top Best Ayurvedic medicine for Gas and Indigestion and those are Gas-O-Go Syp for Dyspepsia | Lavizyme Syrup for Acidity | Yumzyme Hepatoprotective Capsules etc
1. NEWER DRUGS &
SOMETHING DIFFERENT IN
MANAGEMENT OF
GLAUCOMA
ARVIND KUMAR MORYA
ASSOCIATE PROFESSOR & UNIT-II HEAD
MS(GOLD – MEDALIST),MNAMS
GLAUCOMA,CATARACT,SQUINT,REFRACTIVE,PAEDIATRIC
OPHTHALMOLOGY
& MEDICAL RETINA SERVICES
DEPT. OF OPHTHALMOLOGY
AIIMS,JODHPUR
2. WHAT IS THE NEED ?
• SINGLE CLASS OF DRUG – NOT ENOUGH - COLLABORATIVE INITIAL GLAUCOMA
TREATMENT STUDY AND THE OCULAR HYPERTENSION TREATMENT STUDY
• ADHERENCE & COMPLIANCE – DRUGS WHICH ARE FREQUENT DOSES . SIMPLY
NOT WELL ACCEPTED . MORE ADDITION OF GROUP OF AGM – AGAIN NOT WELL
ACCEPTED
3. SO WE NEEDS TO LOOK FOR A PERFECT
SOLUTION
• DRUGS WITH GREAT MILEAGE (LONGER ½ LIFE)
• ADHERENCE
• HIGH IOP LOWERING CAPACITY
• LESSER SIDE EFFECTS
• ECONOMICAL
• MODIFICATIONS AT GENETIC LEVEL
• IMPROVES OBF
• NEUROPROTECTIVE WITH MORE ACCEPTABILITY
4. IOP – ONLY MODIFIABLE FACTOR
• PILOCARPINE – FIRST AGD – YR 1877
• LATANOPROST – IN YR 1996
• SO AFTER >2 DECADES – A NEW GROUP OF AGD NOW AVAILABLE
• DEVELOPED IN JAPAN
6. RHO KINASE INHIBITORS
RHO DEPNDANCE MOA ATTACHES TO TRANSMEMBRANE RECEPTORS
RHO GTP ASE
ROCK
MLC PHOSPHORYLATION
SMOOTH MS CONTRACTION,CELL MOT
&CYTOSKELETON ALTERATIONS
TM – SMOOTH MS CELL PROPERTY ACTIV
ENHANCED AQ OUTFLOW ACTIVITY
7. RIPASUDIL(0.4%HCL HYDRATE/K-115)
• S CONFIGURATION AT THE 2-POSITION ON THE 1,4-DIAZEPANE RING OF RIPASUDIL - GIVES
THIS DRUG ITS CHARACTERISTIC EFFECT ON SMMOTH MS CONTRACTILITY
• DERIVATIVE / FASUDIL, BOTH SHARE THE SAME CORE STRUCTURE OF 5-(1,4-DIAZEPAN-1-
YLSULFONYL)ISOQUINOLINE.
• FASUDIL WAS A POTENT RHO-KINASE INHIBITOR, BUT ON INCORPORATION OF A FLUORINE
ATOM AT THE C4 POSITION OF ISOQUINOLINE MOIETY AND THE CHIRAL ATTACHMENT OF A
METHYL GROUP TO THE C2’ POSITION OF 1,4-DIAZEPANE MOIETY
• IOP LOWER ACTION INCREASED CONSIDERABLY
• SO "RIPASUDIL PROVED TO BE MUCH MORE POTENT AND SELECTIVE RHO-KINASE INHIBITOR >
FASUDIL"
8. PHARMACOKINETICS
• NO EFFECT ON RESPIRATORY OR NEUROLOGICAL FUNCTION.
• NO CARCINOGENICITY STUDIES EVER PERFORMED, IT SEEMS TO BE NON-
CARCINOGENIC BY ITS RAPID ELIMINATION & LACK OF ACCUMULATION IN TISSUE
• LACK OF INFLAMMATORY RESPONSE IN THE EYE POST-ADMINISTRATION
• RIPASUDIL ACHIEVES A HALF-LIFE OF 0.49 TO 0.73 HOURS IN HUMANS AND IS
PREDOMINANTLY EXCRETED IN THE URINE.
• A REPORT SUBMITTED TO JAPANESE PHARMACEUTICALS AND MEDICAL DEVICES
AGENCY - IT SHOWED NO BINDING AFFINITY FOR RECEPTORS OF
THE ADRENERGIC, ANGIOTENSIN
II, ENDOTHELIN, GLUTAMATE, HISTAMINE, MUSCARINIC, OR PROSTANOID VARIETY.
THIS LACK OF AFFINITY ALSO APPLIES TO CA2+ AND K+ CHANNELS, CARBONIC
ANHYDRASE, AND HMG-COA REDUCTASE
• BD DOSE
9. OTHER MOA
• MARCH 2016 IT PROVES TO PROMOTE CORNEAL ENDOTHELIAL CELL (CEC)
PROLIFERATION IN CULTURED HUMAN CELLS AS WELL AS WOUND HEALING AND
ENDOTHELIUM REGENERATION IN A RABBIT WOUND MODEL
• SCIENTISTS BELIEVED THESE PROPERTIES COULD PREVENT OR IMPROVE THE CEC
DENSITY DROP ASSOCIATED WITH CATARACT SURGERY OR CORNEAL TRAUMA-
MECH INDUCED OR NATURAL.
• SO GENERAL HAZINESS, EDEMA OF THE CORNEA, OR KERATOPATHY CAN BE
PREVENTED
• GENERAL IMPROVEMENT IN THE RECOVERY OF A POST-OPERATIVE PATIENT.
• IN 2016, IT SEEMS TO PREVENT EXCESSIVE SCARRING AFTER GLAUCOMA
FILTRATION SURGERY BY ATTENUATING THE ACTIVATION OF
CONJUNCTIVAL FIBROBLASTS
• THE DRUG WAS ALSO UNDER CLINICAL REVIEW FOR ITS ABILITY TO ALLEVIATE
10. SIDE EFFECTS
• CONJUCTIVAL HYPEREMIA
• CONJUNCTIVAL HAEMORRHAGE(5.7%)
• TRANSIENT CORNEAL GUTTAE FORMATION
• OCULAR IRRITATION (3.8%)
RIPATEC IS AVAILABLE IN INDIA NOW
11. ADRENERGIC RECEPTOR AGONIST-
TRABODENOSON(INO-8875)
M O ACTION
MATRIX METALLOPROTEINASES –II ACTIVATED
SCAVENGING OF TYPE-IV COLLAGEN IN TM REMOVAL
OUTFLOW RESISTANCE DECREASED – IOP LOWERS
PHASE-III TRIAL- IOP LOWERS UPTO
4.1 MM/HG
12. BKCA IONIC CHANNEL MODULATORS
LATANOPROSTENE BUNOD
(LBN,BOL-303259-X)
ENHANCES NO LEVEL IN TM
IONIC CHANNEL ACTIVATION – SMOOTH MS
RELAXATION
AQ.OUTFLOW INCREASES – TM &
UVEOSCLERAL PATHWAY
MODIFIED PG ANALOGUE & NO DONOR PHASE-III , 8.4 MM/HG
13. SI RNA’S - BAMOSIRAN(SYL040012)
SPECIFIC GENE SILENCING ACTION
INHIBIT B2 ADR. RECEPTOR
CB AQ. PRODUCTION IS REDUCED
PHASE-I ACTUAL IOP CHANGING ABILITY NOT KNOW
18. EXOGENOUS NEUROTROPHIC FACTORS
ADMINISTRATION
INTRAVIT. 5UG BDNF & 2UG CNTF- SHOWED 10-25% FALL IN CELL DEATH RATE
TOPICAL NGF QID X 7WEEKS – INCREASED CELL DENSITY BY 37%
MORE CLINICAL TRIALS WITH CONTROL GROUP ARM IS REQUIRED
EFFECTS SHORT LIVED , TEMPORARY & RAPIDLY WANES- SO APOPTOSIS IS INEVITABLE
SUSTAINED RELEASE PREPARATIONS MIGHT HELP IN FUTURE TRIALS
19. GENE THERAPY – REPLACEMENT/SILENCING
• IDEAL THERAPY – EXPRESSION SPECIFICALLY IN TARGET CELLS IN DESIRED AMOUNT IN A TIME
DEPENDANT MANNER
• NON-PATHOGENIC,NON-IMMUNOGENIC & NON-TOXIC
• LONG TERM GENE EXPRESSION WITH SINGLE DOSE
• EYE – SUITABLE TARGET ORGAN – COMPARTMENTALIZED –ACCURATE DELIVERY OF VECTOR TO
SPECIFIC TISSUE UNDER DIRECT MICROSCOPIC VISUALIZATION
- MIN. SYSTEMIC DISSEMINATION & S/E
- SMALL SIZE/OCULAR TISSUE – STABLE POPULATION CELLS TRANSDUCED EFFICIENTLY BY SMALL
VOL/VECTOR DOSES
- NON INVASIVE & PRECISE OPTICAL IMAGING AVAILABLE
- VISUAL FUNCTION – BOTH PHYSIOL & ELECTROPHYS EASILY MEASURABLE
- CONTRA LATR EYE – NATURAL CONTROL GROUP
20. GENE THERAPY – 1.RECESSIVE DS.-LESS
FUNC/GENE:REPLACEMENT
2.DOMINANT DS. –REMOVAL/GENE MUTANT
TRANSCRIPT: SILENCING & REPLACEMENT
REQD
GLAUCOMA GENES
GENE DS. MOA THERAPY
MYOC-MENDELIAN JUV&AD POAG PROTEIN AGGREGATION CRISPR GENE EDITING
TEK,ANGPTI. CONG,JU&AD POAG. SCHL. CANAL DEVELOP. ENHANCED TEK SIGNALING
ABCA1,CAV1,DGKG, POAG LIPID METABOLISM & TM
ARHGEF12. DYSFUNCTION STATINS?
TXNRD2&4 OTHER
MITOCHOND. GENE. POAG. MITOCHOND. DYSFUNCTION RESTORE MITOCHOND
FUNCTION
21. GENE THERAPY IN GLAUCOMA – RGC
SURVIVAL
• WORK OF KEITH MARTIN – MODULATION/BDNF SIGNALLING - RGC PROTECTION – STRONG
NEUROPROTECTION IN ANIMAL MODEL -38.3% RESCUE/RGC
• AAV TRKB BDNF > AAV BDNF AFTER O.N. CRUSH – 67% INCREASE IN RGC SURVIVAL RATE
• GT – PROVIDES PROTECTION AGAINST LOSS OF EEG AS O.N. CONNECTIVITY TO BRAIN
MAINTAINED IN ANIMAL MODELS IN PRESENCE OF RAISED IOP
• WORK OF PAUL KAUFMAN & SHAMIRA PERERA – MODULATION OF X – GENE TO UPREGULATE
TM OUTFLOW
• CUSTOMIZED 125 MICROMETER CATHETER AVAILABLE FOR SCHLEMM’S CANAL DELIVERY(S-
PERERA)
• EXPERIMENTS UNDERGOING IN PRIMATES
• BY AAV VECTOR
22. GENE THERAPY
VIRAL VECTORS ADMINISTRATION INTEGRATION WITHIN TARGET RETINAL CELLS
INCREASED PRODUCTION/NEUROTROPHIC FACTORS IN RETINAVIRAL VECTOR GENE EXPRESSION -
SHORTLIVED
NON VIRAL VECTORS MAY BE TRIED
POLY ETHYLENE OXIDE –POLY PROPYLENE OXIDE-POLY ETHYLENE OXIDE(PEOPPO-PEO)EYE DROPS-NON INVA
TRKA R-AGONIST-PEPTIDOMIMETIC LIGAND SURVIVAL RATE OF RGC INCREASES IN GLAUCOMA
23. GENE THERAPY IN BRIARD CANINES WITH LCA
• DELIVERY OF RPE65 USING VIRAL GENE THERAPY IN 2000 TO THESE AFFLICTED
DOGS GAVE ENCOURAGING RESULTS: THE DOGS HAD IMPROVED VISION AS
SHOWN BY THEIR ELECTRORETINOGRAMS AND THEIR ABILITY TO NAVIGATE
OBSTACLE COURSES IN DIM LIGHT (ACLAND ET AL., 2001).
24. STEM CELL THERAPY
HUMAN BONE MARROW AUTOLOGOUS MESENCHYMAL STEM CELLS(MSC’S)
INTRAVIT. INJECTIONREGENERATION OF RGC AT RETINA & ONH BY
STEM CELLS
RETINAL PRECURSSOR CELLS FROM EMBRYONIC RETINA SUB RETINAL SPACE OF MICE
REAL FUNCTIONAL RECOVERY ON LOWER SIDE WITH ONLY SOME VISUAL
RESTORATION ONLY
25. IMMUNOMODULATION
• IT’S BEEN POSTULATED THAT IMMUNE SYSTEM PLAYS KEY ROLE IN
ABILITY/O.N.& RETINA TO WITHSTAND GLAUCOMA
• INNATE & ADAPTIVE IMMUNE CELLS – PROTECTIVE NISHE TO HALT GLAUCO.
PROGRESSION
• GLATIRAMER ACETATE (COP1) THERAPEUTIC VACCINATION
26. OTHER NEWER AGENTS- FOR FUTURE
CLINICAL TRIALS
• TETRAHYDRO CORTISOL – LOWER STEROID(DEXA) INDUCED OHT
• MIFEPRISTONE- ASPECIFIC GLUCOCOTICOID RECEPTOR ANTAGONIST – DEC. IOP
• SPIRONOLACTONE A- STEROID ALDOSTERONE ANTAGONIST WITH POT. SPARING
DIURETIC MOA- SIGNIFICANT LOWERING/IOP
• ANTAZOLINE- ANTIHISTAMINE TOPICALLY BY LOWERING AQ. PRODUCTION
28. NEWER DRUG DELIVERY SYSTEM
• NANO PARTICLES BASED EYE DROPS
• CONTACT LENS BASED DELIVERY SYSTEM
29. TAFLUPROST
• FIRST PPF PG ANALOGUE
• US FDA APPROVAL IN 2012
• LESSER SIDE EFFECTS
• .0015%
• OD EVENING DOSE
• BETTER ADHERENCE AND COMPLIANCE
30. SOMETHING NEW AND LITTLE DIFFERENT
A COMBI – WONDER PILL : MOST ECONOMICAL , WELL ADHERE
BEST COMPLIANCE
31. MEDITATION
• YOGA – UNION OF MIND BODY & SOUL
• 3RD CENTURY BC – MAHIRSHI PATANJALI
• FOCUSSED ATTENTION BY BREATH,MANTRA & SOUND
• RELAXATION INDUCTION & INTROSPECTION
• DETACHMENT FROM OUR OWN THOUGHTS – SO A CALM STATE & MENTAL
EQUANIMITY
32. RELAXATION RESPONSE – HERBERT
BENSEN(MD)
CO-ORDINATED PHYSIOLOGICAL RESPONSE
CONTROLLED BY PS N. SYSTEM
• AROUSAL WITH ALPHA-FRONTAL EEG ACTIVITY
• VOLUMETRIC O2 CONSUMPTION & CO2 ELIMINATION
• HT. RATE , RESP. RATE & BP
• UNIQUE STATE TO NEGOTIATE STRESS IN OUR LIFE
33. STRESS -
• RISE IN IOP
• POAG PT. ARE HIGH STEROID RESPONDERS
• HIGH PLASMA CORTISOL LEVELS IN OHT AS COMPARED TO NORMAL
POPULATION WITHOUT GLAUCOMA
CORTISOL LEVELS WITHOUT ANY
SYST/TOPICAL INTAKE
35. MRI – BRAIN CHANGES IN GLAUCOMA
PATIENT
• TRANS – SYNAPTIC NEURODEGENERATION IN LATR GENICULATE BODY &
OCCIPITAL CORTEX
• RAISED IOP & INJURY TO RGC TRIGGERS NEURODEGENERATION IN DISTANT
CONNECTED NEURONS IN MAJOR VISUAL CENTRES / BRAIN
• BRAIN IS A POTENTIAL TARGET TO BE TREATED IN GLAUCOMA
36. STRESS – HIPPOCAMPAL NEURONAL
DEGENERATION
HYPOTHALAMUS PITUITARY
RELEASE OF ACTH – STIMULATION/ADRENAL GLANDS – RELEASE/GLUCO CORTICOIDS
HIPPOCAMPUS CORTICOSTEROIDS
MODULATION/SYNAPTIC PLASTICITY DENDRITIC STRUCTRAL ALTERATION NEURO
CAUSES MEMORY LOSS & NEURODEGEN :- MAIN CAUSE OF POOR COMPLIANCE/ADHERENCE IN GLAUCOMA
37. MAC ARTHUR STUDY OF AGING POPULATION
• COGNITIVE DECLINE IS DIRECTLY PROPORTIONAL TO RAISED CORTISOL LEVELS
• REVERSIBLE WITH LOWERING / CORTISOL LEVELS
• MOST GLAUCOMA PT. – DEMENTIA , ANXIETY, DEPRESSION, POOR
PSYCHOSOCIAL BEHAVIOUR, DEC. LIBIDO & POOR QUALITY OF LIFE THAT
FURTHER DETIORATES WITH INITIATION OF AGM
38. MEDITATION & GREY MATTER
• FOREVER YOUNG:POTENTIAL AGE DEFYING EFFECT/LONG TERM
MEDITATION/GREY MATTER ATROPHY E.LUDERS ET.AL. PROVES REVERSAL OF
NEURO COGNITIVE DECLINE BY NEUROGENESIS IN ADULT BRAIN
• SARA W.LAZER STUDY. MEDITATION STOPS/ SLOWS DOWN AGE RELATED
CORTICAL THINNING
• META ANALYSIS BASED ON 21 NEURO IMAGING STUDIES BY KIERAN C R FOX ET
AL. PROVES THAT ENHANCED GREY MATTER SYNTHESIS IN LONG TERM
MEDITATING GROUP.
• SHORT TERM (8 WEEKS) MEDITATION MRI STUDY BY BRITTA K HALZEL ET AL.
HAD SHOWN INCREASED GREY MATTER CONC. IN HIPPOCAMPUS, POSTR
CINGULATE CORTEX, TEMPORO-PARIETAL JUNCTION & CEREBELLUM WITH
IMPROVED HIGHER ORDER BRAIN FUNCTION LIKE – LEARNING, MEMORIZING &
BETTER EMOTIONAL REGULATION
39. MEDITATION AND WHITE MATTER
• D.LANERI ET AL. STUDY SHOWED INCREASED WHITE MATTER
DENSITY(THALAMUS&INSULA) & NO OR SLOWED DOWN DECLINE IN AGE
RELATED WHITE MATTER ATROPHY BY FOLLOWING MOA - INCREASED :-
MYELINATION, AXON DENSITY, AXON DIAMETER , AXON MEMB. INTEGRITY &
FIBRE GEOMETRY
• E.LUDERS STUDY. AI BASED BRAIN AGE INDEX IN MEDITATORS VS NON
MEDITATORS. AVG 7.5 YR YOUNGER THAN NORMAL CONTROL GROUP.
• HENCE, MEDITATION PROTECTS AGAINST AGE RELLATED WHITE MATTER
ATROPHY.
40. MEDITATION & CEREBRAL BLOOD FLOW
GLAUCOMA PT. WITH DEC. CBF&OBF AFFECTS
VISUAL
CORTEX
• 3T ARTERIAL SPIN LABELLING MRI STUDY BY QUIAN WANG ET AL. PROVES THAT
REDUCED BLD FLOW IN VISUAL CORTEX(V1,2 & VP) IS DIRECTLY PROPORTIONAL
TO THE CD RATIO & GCC THICKNESS
• SHORT TERM MEDITATION(30 MINS X 5 DAYS) INCREASES BLD FLOW IN ANTR
CINGULATE CORTEX & INSULA
• MEGHAL ET AL. AIIMS,DELHI,AN RCT ON 6 WEEKS MEDITAION SHOWED
INCREASED BRAIN OXYGENATION,UPREGULATION/BDNF, IMPROVED QOL/POAG
PT., SIGNIFICANT RISE IN OXYGENATED HB. IN PRE FRONTAL CORTEX
41. MEDITATION & GLUTAMATE EXCITOTOXICITY
• N.FAYED STUDY. LONG TERM ZEN MEDITATION SHOWED REDUCTION IN
CEREBRAL GLUTAMATE LEVEL (THALAMUS)
• NEGATIVE CO-RELATION BETWEEN GLU EXCITOTOXICITY & YEARS / ZEN
MEDITATION
42. MEDITATION & AUTONOMIC DYSFUNCTION &
NTG
• NTG PT. - SYMP. ACTIVITY & DEC. P.SYMP. ACTIVITY > CHANCES OF
ARTERIOSCLEROSIS, HYPO/HYPERTENSION, VASOSPASM, DM, POOR IMMUNE
STATUS, THYROID DS., NEURODEGEN. DS., SLEEP DISTURBANCES, POOR PSYCHO
SOCIAL ABILITIES
• H. Y L PARK ET AL. STUDY SHOWED THAT INC. STRESS LEVELS LEADS TO
AUTONOMIC DYSFUNCTION THAT IS IN PROPORTIONATE TO VISUAL FIELD
CHANGES IN VISUAL FIELD
• Y Y TANG ET AL STUDY PROVES THAT SHORT TERM MEDITATION(20MINS X 5 D)
INC. P.SYMP. ACTIVITY WITH DEC. IN SYMP. ACTIVITY THROUGH BETTER
REGULATION OF ANS BY FRONTAL CORTEX.
43. MEDITATION & CHRONIC SYSTEMIC DS.
• A DAVE ET AL. STUDY SHOWS THAT GLAUCOMA PT. HAD MORE CO-
MORBODITIES LIKE DM/HTN.
• G N LEVINE ET AL STUDY PROVED THAT MEDITATING POPULATION HAD DEC.
RISK OF CARDIOVAS. ATTACKS
• R H SCHNEIDER ET AL STUDY PROVES 48% REDUCTION IN MORTALITY IN
CARDIAC PT. & AVG FALLIN BP BY 5 MM/HG
45. MINDFUL MEDITATION EFFECT ON GLAUCOMA
T.DADA ET AL.STUDY 21 D X 1HR
• DEC. CORTISOL LEVELS
• DEC. INFLAMMATORY MARKERS LIKE IL-6&TNF- ALPHA
• 54 GENES UPREGULATION & 56 GENES DOWNREGULATION
• LOWERS IOP BY P.SYMP ACTIVATION, INC.TM OUTFLOW, DEC. CORTISOL LEVELS,
CENTRAL REGULATION
• INC. NIGHT TIME PLASMA MELATONIN LEVEL
46. ORAL AGOMELATINE 25 MG/D – 30% DEC. /
IOP
• N. PESCOSOLIDO STUDY PROVES THIS BY MOA:- UPREGULATION OF ALPHA-2 R
– AGONIST , DOWNREGULATION OF BETA 2 R – ANTAGONIST ,
MODULATION/DOPAMINERGIC PATHWAYS, DOWNREGULATION OF CARBONIC
ANHYDRASE ACTIVITY & MODULATION/GAG BIOSYNTHESIS TO INC. TM
OUTFLOW
• JI JIN ET AL. STUDY SHOWS THAT OPIOD PEPTIDE DEC. IOP BY ACTIVATING
ARCUATE NUCLEUS/HYPOTHALAMUS MEDIATED BY BETA-ENDORPHINS
47. MEDITATION – BEST ADJUNCT COMBO-PILL
EFFECTS
• DEC. IOP - INC. OBF & CBF - BETTER AUTONOMIC
FUNCTION
• DEC. OXIDATIVE STRESS. - DEC. MITOCHOND. DYSFUNCTION
• DEC. IL-6 & TNF LEVELS. - DEC. GLU IN BRAIN.
• UPREGULATION OF NEUROTROPHIC GENE EXPRESSION LEADS TO
NEUROPROTECTION
• DEC. AGE RELATED CNS ATROPHY & BRAIN AGING
• REDUCED STRESS & HAPPY MOOD LEADS TO IMPROVED QOL
• DOWNREGULATION OF TGF-BETA IN TM & BLOOD
• DEC. RISKS DUE TO CHR. SYST. DS BY DEC. BP & PSYCHO SOCIAL STRESS
• USEFUL ADJUNCT “NO COST THERAPY “ IN PSYCHIATRIC CONDITIONS &
48. OUR STUDY – 107 REGULAR YOGA DOING
SUBJECTS(12 WEEKS)
• 10 COMMONLY PRACTISED ASANA’S WERE INCLUDED
• KAPALBHATI , ANULOMVILOM SIGNIFICANTLY DECREASES MEAN IOP
• SHIRSASANA , BHARSTIKA & PRANAYAMA INCREASES IOP
49. TAKE HOME MESSAGE
MANAGEMENT OF EYE ALONE IS SIMPLY NOT ENOUGH – MANAGE A PERSON
HIDING BEHIND
DISEASE OF GLAUCOMA
DECREASING STRESS AND QUALITY OF LIFE IMPROVEMENT MUST BE THE TARGET
THERAPY FOR GLAUCOMA PATIENTS