Glaucoma is the second leading cause of blindness worldwide. It involves damage to the optic nerve due to increased intraocular pressure. While pressure within the eye normally ranges from 11-21 mmHg, pressures above 21 are considered high risk for glaucoma. Damage occurs when pressure is not adequately relieved by drainage from the eye. Early detection through screening and treatment can prevent vision loss, but many patients are asymptomatic in early stages when peripheral vision is lost.
It describes about the procedure of Hess charting. it serves as a great tool to understand the concepts involved. Suitable for optometry course. This is not a routine procedure but an important procedure which is used in diagnosis.
Active Vision Therapy in Management of Amblyopia (healthkura.com)Bikash Sapkota
DIRECT DOWNLOAD LINK ❤❤https://healthkura.com/lazy-eye-amblyopia/❤❤
In the request of my viewers, I have compiled my works here in a website. Visit this website (healthkura.com) to freely download this presentation along with other tons of presentations. Some useful links are given here.____Remember___healthkura.com
Active Vision Therapy in Management of Amblyopia
- Pleoptics
- Near activities
- Active stimulation therapy using CAM vision stimulator
- Syntonic phototherapy
- Role of perceptual learning
- Binocular stimulation
- Software-based active treatments
- Exposure to dark
- Pharmacological Therapy
It describes about the procedure of Hess charting. it serves as a great tool to understand the concepts involved. Suitable for optometry course. This is not a routine procedure but an important procedure which is used in diagnosis.
Active Vision Therapy in Management of Amblyopia (healthkura.com)Bikash Sapkota
DIRECT DOWNLOAD LINK ❤❤https://healthkura.com/lazy-eye-amblyopia/❤❤
In the request of my viewers, I have compiled my works here in a website. Visit this website (healthkura.com) to freely download this presentation along with other tons of presentations. Some useful links are given here.____Remember___healthkura.com
Active Vision Therapy in Management of Amblyopia
- Pleoptics
- Near activities
- Active stimulation therapy using CAM vision stimulator
- Syntonic phototherapy
- Role of perceptual learning
- Binocular stimulation
- Software-based active treatments
- Exposure to dark
- Pharmacological Therapy
An important instrument in every day job of critical ill patients . This work shop has been performed to help clinicians to understand how to deal with direct ophthalmoscope and organize diagnostic and life saving fundoscopy findings .
Glaucoma is not a single disease process but a group of disorders characterized by a progressive optic neuropathy resulting in a irreversible visual field defects that are associated frequently raised intraocular pressure (IOP).
IOP is the most common risk factor but not the only risk factor for development of glaucoma.
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
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.
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
1. Glaucoma Screening
Nicholas J. Silvestros, OD
Clinical Instructor
Department of Ophthalmology and Vision Sciences
Washington University St. Louis
School of Medicine
2. Causes of Visual Impairment in
the World
http://www.who.int/entity/mediacentre/factsheets/fs282_2.gif
3. Glaucoma
• 2nd most common cause of blindness in U.S.
• Single most common cause of blindness in
African Americans
• African Americans 4x more likely to have glaucoma
and 6x more likely to be blind from it
• If detected early and treated, blindness can be
prevented
• In early stages, most patients asymptomatic
• Peripheral vision can be lost before patient notices
visual impairment
5. Aqueous Flow
• Ciliary body
• Produces aqueous
(fluid in the eye)
• Trabecular
meshwork
• Drains aqueous
fluid out of eye
6. Aqueous Humor Formation
• Involves the combination of 2 known
processes:
• Active transport (secretion)
• 80% of Aqueous
• Passive transport (ultrafiltration and diffusion)
• 20% of Aqueous
• Affected by topical glaucoma medications: beta-
blockers, sympathomimetics and carbonic
anhydrase inhibitors
9. Aqueous Humor Trivia
• Nourishes lens, cornea, vitreous
• Decreases production with:
• Sleep
• Age
• Some systemic hypotensive agents
• Decrease outflow with:
• Age
10. Intraocular Pressure
• IOP:
• Range 11 mmHg to 21 mmHG
• 21 considered upper limit of normal
• IOP varies time of day, heart beat, BP,
respiration
• Tendency for higher AM and lower evening
• Lower during laying/sleeping
• Diurnal variation:
• 2-6 mm Hg normal
• >10 mm Hg suggestive of glaucoma
11. Intraocular Pressure
• IOP:
• IOP varies time of day, heart beat, BP,
respiration
• Tendency for higher AM and lower evening
• Lower during laying/sleeping
• Age (increases with age)
• Caffeine (transiently increases in IOP)
• Alcohol (transiently in IOP)
• Cannibis (mild in IOP)
12. Intraocular Pressure Trivia
• IOP:
• No absolutes
• A “normal” IOP reading may be misleading and
additional reading at different times of the day may
be required
• IOP is a risk factor and does not eliminate glaucoma
if a “normal” reading is recorded
• Must be compared with all other risk factors and
clinical data
13. Measurement of IOP
• Applanation Tonometry:
• Measures the force necessary to flatten an area
of cornea 3.06 mm diameter
• Central part of cornea flattened while variable
force records pressure
• Central Corneal Thickness:
• >540 micrometers produce falsely high IOP
readings by TA
• <540 micrometers produce falsely low IOP reading
by TA
15. Measurement of IOP
• Applanation Tonometry:
• Goldmann tonometer
• Most popular tonometer and accurate tonometer
• Tono-Pen tonometer
• Hand held portable tonometer
• Over estimates low IOP and underestimates high
IOP
16. Measurement of IOP
• Non-Contact Tonometry:
• Air-Puff tonometer
• Goldmann principles with air instead of prism
time required to flatten cornea relates directly to level of
IOP
• Does not require topical anesthetic
• Useful for screenings
• Disadvantage – accurate low to mid IOP range
20. Falsely elevated IOP readings
• Elevated:
• Squeezing of the eyelids
• Breath holding or valsalva maneuvers
• External pressure on the globe
• Thick or scarred corneas
• Marked astigmatism
• Lower:
• Thin corneas
• Marked astigmatism
21. Optic Nerve Head
• 1.2 million axons
• Declines with age
• Cell bodies are the ganglion cells
• Magnocellular (M) cells 10%
• Large diameter (dim illumination)
• Parvocellular (P) cells 90%
• Small diameter axons (color, fine detail)
22. Optic Nerve Head
• Scleral Canal
• Lamina Cribrosa
• Optic Cup
• Neuroretinal Rim
• Size of ON:
• AA>Asians>Hispanics>Whites
24. Optic Nerve Head
• Cup-Disc Ratio
• Fraction of vertical and horizontal meridians
• C/D=0.3/0.3
• Normal is 0.3 or less
• Ratio greater than 0.7 regarded suspicious
• Asymmetry between two eyes of 0.2 or more
regarded suspicious
• Cup size is needed to evaluate progression not
initial diagnosis
25. Optic nerve appearance in glaucoma
• Glaucoma nerve damage ranges from
localized to diffuse
• Localized easier to recognize with notching
• Description of nerve important
• Neuralretinal rim tissue
• Thickness
• Symmetry
• Color
• Notching
• Hemorrhage disc margin
Cataract leading cause of visual impairment in the world. ARMD leading cause of irreversible blindness in Caucasians and glaucoma is the leading cause of blindness in AA and Hispanics in the U.S.
Let’s now look at the anatomy of the eye to better understand the diseases and age-related changes which occur in the eye.
Glaucoma is a problem with drainage of aqueous through the TM resulting in increased IOP and….damage to the optic nerve.
AH formed by the inner nonpigmented
TM (uveoscleral, corneosclera, juxtacanalicular), schlemm’s canal, collector channels,aquous veins, episclearal or conj veins, santerior ciliary and superior ophthalmic veins and cavernous sinus
Let’s now look at the anatomy of the eye to better understand the diseases and age-related changes which occur in the eye.
Rate of formation and outflow facility decline with age!
Rate of formation and outflow facility decline with age!
Rate of formation and outflow facility decline with age!
Rate of formation and outflow facility decline with age!
Perkins- portable Golmann Non-contact – air puff
Perkins- portable Golmann Non-contact – air puff
Perkins- portable Golmann Non-contact – air puff
Perkins- portable Golmann Non-contact – air puff
Let’s now look at the anatomy of the eye to better understand the diseases and age-related changes which occur in the eye.
Let’s now look at the anatomy of the eye to better understand the diseases and age-related changes which occur in the eye.
Let’s now look at the anatomy of the eye to better understand the diseases and age-related changes which occur in the eye.
Digital external pressure by examiner Restricted myopathy (thyroid) – >6 mm Hg elevation in IOP in upgaze
So normal on is slightly vertically oval
Hopewell – c/d OS
So normal on is slightly vertically oval
Let’s now look at the anatomy of the eye to better understand the diseases and age-related changes which occur in the eye.
Let’s now look at the anatomy of the eye to better understand the diseases and age-related changes which occur in the eye.
Let’s now look at the anatomy of the eye to better understand the diseases and age-related changes which occur in the eye.
Nerve fiber layers affecting peripheral vision damaged early
Let’s now look at the anatomy of the eye to better understand the diseases and age-related changes which occur in the eye.
Let’s now look at the anatomy of the eye to better understand the diseases and age-related changes which occur in the eye.