Tearfilm by arya
•Download as PPTX, PDF•
5 likes•221 views
This document discusses the tear film in the human eye, specifically examining how it is affected during contact lens wear. It covers the structure and function of the normal tear film, methods for examining the tear film when contact lenses are worn, changes to tear production and the tear film's pH and temperature that occur with contact lens use. The document notes that further details are provided on these topics related to analyzing and understanding the tear film during contact lens wear.
Report
Share
Report
Share
Recommended
Ophthalmic viscosurgical devices presentation
Ophthalmic viscosurgical devices (OVDs) are gel-like materials used in eye surgery to protect delicate structures, maintain space, and allow manipulation. They contain substances like sodium hyaluronate and change viscosity based on shear rate. Cohesive OVDs maintain space while dispersive OVDs coat tissues. OVDs are used to enlarge the pupil, flatten the capsule, and implant IOLs safely. They can also protect the endothelium during cataract surgery and tamponade the vitreous. Post-operative high pressure is a potential complication if the OVD is not fully removed.
ophthalmic viscosurgical devices
powerpoint presentation about ophthalmic viscosurgical devices composition , chemical and rheological properties and clinical uses.
Ophthalmic Viscoelastic devices
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
Ohthalmic drugs arya
This document outlines various topics related to ocular pharmacology including general pharmacological principles, diagnostic drugs, therapeutic drugs, adverse drug effects, pharmacokinetics, pharmacodynamics, drug classifications, modes of ocular drug administration, ocular anesthesia, common antimicrobial agents, and more. It provides information on drugs used for conditions like glaucoma, uveitis, infections and inflammation.
Suppression third yr arya
This document discusses suppression, which is one of the three mechanisms of sensory adaptation that occurs in patients with strabismus. Suppression refers to the active inhibition of the image from the deviated eye to avoid diplopia. There are different types of suppression depending on factors such as etiology, retinal area involved, constancy, and the eye affected. Several tests are used to diagnose suppression including the Worth four dot test, Bagolini striated glass test, and visual acuity testing. Treatment involves refractive correction, occlusion therapy, eye alignment procedures, and anti-suppression exercises.
Amblyopia 3 rd year arya
Amblyopia is diminished vision in one or both eyes that cannot be corrected by glasses and is not caused by eye or nerve disease. It is commonly caused by strabismus, unequal refractive error between the eyes (anisometropia), uncorrected high refractive error, or form deprivation. Amblyopia can be treated through occlusion therapy, which involves patching or blurring the better-seeing eye, or penalization therapy, which makes vision harder for the better eye. The goal of treatment is to encourage use of the amblyopic eye and improve its vision.
Personal protective equipment.........arya
This document discusses personal protective equipment (PPE) and focuses on eye and face protection. It notes that nearly 2 million people receive disabling work injuries each year, with over a quarter involving the head, eyes, hands or feet. PPE is designed to protect workers from hazards like chemicals, radiation, impacts and more. The document outlines OSHA standards for employers to assess hazards, provide necessary PPE and training. It details types of eye and face protection like safety glasses, goggles, face shields and welding helmets and notes criteria for selecting the right protection for specific hazards.
Visual standard for jobs arya
The document discusses various occupations and the eye protection needs associated with each. It notes that many industries pose potential eye hazards and that the majority of eye injuries occur when workers are not wearing appropriate eye protection or are wearing the wrong type of protection. It provides details on the types of hazards common in industries like construction, mechanics, fishing, and others. It recommends ensuring workers have and properly use eye protection suited for the potential hazards in their occupation to prevent eye injuries.
Recommended
Ophthalmic viscosurgical devices presentation
Ophthalmic viscosurgical devices (OVDs) are gel-like materials used in eye surgery to protect delicate structures, maintain space, and allow manipulation. They contain substances like sodium hyaluronate and change viscosity based on shear rate. Cohesive OVDs maintain space while dispersive OVDs coat tissues. OVDs are used to enlarge the pupil, flatten the capsule, and implant IOLs safely. They can also protect the endothelium during cataract surgery and tamponade the vitreous. Post-operative high pressure is a potential complication if the OVD is not fully removed.
ophthalmic viscosurgical devices
powerpoint presentation about ophthalmic viscosurgical devices composition , chemical and rheological properties and clinical uses.
Ophthalmic Viscoelastic devices
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
Ohthalmic drugs arya
This document outlines various topics related to ocular pharmacology including general pharmacological principles, diagnostic drugs, therapeutic drugs, adverse drug effects, pharmacokinetics, pharmacodynamics, drug classifications, modes of ocular drug administration, ocular anesthesia, common antimicrobial agents, and more. It provides information on drugs used for conditions like glaucoma, uveitis, infections and inflammation.
Suppression third yr arya
This document discusses suppression, which is one of the three mechanisms of sensory adaptation that occurs in patients with strabismus. Suppression refers to the active inhibition of the image from the deviated eye to avoid diplopia. There are different types of suppression depending on factors such as etiology, retinal area involved, constancy, and the eye affected. Several tests are used to diagnose suppression including the Worth four dot test, Bagolini striated glass test, and visual acuity testing. Treatment involves refractive correction, occlusion therapy, eye alignment procedures, and anti-suppression exercises.
Amblyopia 3 rd year arya
Amblyopia is diminished vision in one or both eyes that cannot be corrected by glasses and is not caused by eye or nerve disease. It is commonly caused by strabismus, unequal refractive error between the eyes (anisometropia), uncorrected high refractive error, or form deprivation. Amblyopia can be treated through occlusion therapy, which involves patching or blurring the better-seeing eye, or penalization therapy, which makes vision harder for the better eye. The goal of treatment is to encourage use of the amblyopic eye and improve its vision.
Personal protective equipment.........arya
This document discusses personal protective equipment (PPE) and focuses on eye and face protection. It notes that nearly 2 million people receive disabling work injuries each year, with over a quarter involving the head, eyes, hands or feet. PPE is designed to protect workers from hazards like chemicals, radiation, impacts and more. The document outlines OSHA standards for employers to assess hazards, provide necessary PPE and training. It details types of eye and face protection like safety glasses, goggles, face shields and welding helmets and notes criteria for selecting the right protection for specific hazards.
Visual standard for jobs arya
The document discusses various occupations and the eye protection needs associated with each. It notes that many industries pose potential eye hazards and that the majority of eye injuries occur when workers are not wearing appropriate eye protection or are wearing the wrong type of protection. It provides details on the types of hazards common in industries like construction, mechanics, fishing, and others. It recommends ensuring workers have and properly use eye protection suited for the potential hazards in their occupation to prevent eye injuries.
Vision therapy arya
Vision therapy uses various techniques to actively train and improve visual skills. It aims to establish efficient binocular vision through tasks that target issues like amblyopia, strabismus, focusing, and eye coordination. Treatment involves procedures done at home and in the office using instruments like lenses, prisms, occlusion, and computer programs. Success depends on accurate diagnosis, a tailored approach for each patient, and their consistent participation in frequent sessions over time.
Visual hallucinations arya
The document summarizes Charles Bonnet syndrome, which causes visual hallucinations in people with vision loss. It describes that the brain fills in missing visual information, sometimes creating fantasy images. People may see patterns, lines, or detailed scenes. The syndrome is caused by damage to the optic nerve or eye conditions like macular degeneration that cause vision loss. It affects mostly older adults who lose vision later in life. Educating patients and helping them cope can improve quality of life for those experiencing these hallucinations.
Orthoptic instruments arya
This document discusses various orthoptic instruments and their therapeutic uses. It describes major amblyoscopes, diploscopes, bar readers, stereogram cards, and pigeon cantonette stereoscopes which are used for fusional exercises, amblyopia therapy, and overcoming suppression. The synoptophore is explained in detail as a haploscopic device used for fusion exercises, antisuppression exercises, and treatment of abnormal retinal correspondence. Procedures for using instruments like the diploscope, cherioscope, and pigeon cantonette stereoscope are provided.
Emmetropization 2 2006
The visual system mechanisms that transform a visual signal into a biochemical signal for eye growth involve both afferent and efferent components located within the eye. Activity at a given retinal location controls the growth of the adjacent sclera. Key retinal components that regulate eye growth include acetylcholine, dopamine, glucagon, and components in the choroid such as retinoic acid. During myopic eye growth, the sclera exhibits increased creep rates and decreased proteoglycan synthesis. Atropine treatment has been shown to significantly reduce the progression of myopia compared to controls.
Corneal anatomy ......arya
The cornea is the transparent outer coat of the eye. It has 5 layers - epithelium, Bowman's membrane, stroma, Descemet's membrane, and endothelium. The stroma makes up around 90% of the corneal thickness and contains collagen fibrils and keratocytes. The cornea is avascular but receives nutrients from blood vessels in the surrounding tissues. It has sensory innervation from the trigeminal nerve but lacks blood vessels in its central region to maintain transparency.
Catoptric images
This document discusses catoptric images, also known as Purkinje-Samson images, which are images formed inside the eye by reflections at the refractive interfaces of the eye. It notes that images 1-3 are formed by reflections at the anterior cornea, posterior cornea, and anterior lens surfaces, and are virtual and erect, while image 4 from the posterior lens surface is real and inverted. Some common uses of Purkinje images are to locate axes and angles in the eye, measure corneal curvature, and measure eye movements and lens changes during accommodation. Clinical uses include testing for cataracts and measuring lens position and curvature using keratometry and the Hirschberg corneal reflex test.
Bifocals by arya and sadaf
This document discusses different types of bifocal lenses, including their advantages and disadvantages. It describes split, cemented, solid, executive, fused (flat top, round top, ribbon, panoptic), kryptok, and ultex bifocals. The key types are:
- Solid bifocals which have minimal image jump and chromatic aberration but restricted distance vision.
- Fused bifocals which have an invisible dividing line but transverse chromatic aberration. Kryptok bifocals address this issue but the button produces reading aberrations.
- Executive bifocals which have a wide reading field of view and improved optics but can be thick for high prescriptions.
Anat n physio of cornea......... arya
The cornea is the transparent outer coat of the eye. It has 5 layers - epithelium, Bowman's membrane, stroma, Descemet's membrane, and endothelium. The stroma makes up around 90% of the corneal thickness and contains collagen fibrils and keratocytes. The cornea is avascular but receives nutrients from blood vessels in the surrounding tissues. It has sensory innervation from the trigeminal nerve but lacks blood vessels in its central region to maintain transparency.
9 maddox wing test.........arya
This document describes a test used to measure heterophoria at near distance. The test works by having the right eye see a vertical and horizontal arrow while the left eye sees vertical and horizontal lines of numbers. The patient reports which numbers the arrows appear to point to in order to measure any horizontal, vertical, or cyclophoric deviations between the two eyes. Key advantages are that it allows simultaneous measurement of multiple types of phorias and relies on accommodation, though it is subjective and cannot be used if accommodation is impaired.
Segment archetecture by arya and sadaf
The document discusses various parameters for designing progressive addition lenses including the centration point, segment shape, size, height, depth, and drop. It notes the reading portion should provide clear vision like the distance portion and the optical centers of the distance and near zones should coincide to avoid prismatic effects. Methods for determining the patient's fitting height are discussed and sources consulted in designing the lenses are acknowledged.
retinoscopy
1. The document discusses various techniques used in retinoscopy including Welsch Allen retinoscopy, plane mirror retinoscopy, and concave mirror retinoscopy.
2. It also summarizes methods for determining prescriptions including subtraction of distance and effects of cycloplegic drops.
3. Guidelines are provided for prescribing glasses for conditions like myopia, hyperopia, and astigmatism with considerations for age and other factors.
Lens material gives a brief description about the materials being commonly us...
Crown glass is a lens material that resists scratching and is not easily affected by the environment. It has a refractive index of 1.523 and is low in chromatic aberration. Hi-index plastics are very impact resistant materials, with Trivex being a triperformance lens material that offers superior optics, impact resistance, and is ultra light weight. Laminated lenses are made of two or more layers of materials and lamination can be done to polarizing lenses to reduce glare or to increase impact resistance.
Anatomy and physiology of eye, general introduction.
This document summarizes the glands and vasculature of the conjunctiva. There are three main types of glands - mucin secretory glands, accessory lacrimal glands, and goblet cells. The mucin glands include globlet cells, Henle's glands, and glands of Manz. The accessory lacrimal glands include glands of Krause, glands of Wolffring, and rudimentary accessory lacrimal glands. The conjunctiva receives blood supply from the marginal arterial arcade, peripheral arterial arcade, and anterior ciliary arteries. Lymphatic drainage is to the periauricular and submandibular lymph nodes. Nerve supply
EXTRA OCULAR MUSCLES
This document discusses eye movements and the anatomy of the extraocular muscles. It describes the different types of eye movements including smooth pursuit, saccades, fixation, and reflex eye movements. It also outlines the actions and innervation of the individual extraocular muscles - the four rectus muscles and two oblique muscles. The document provides details on motor units, fiber types, and recruitment patterns in extraocular muscles.
Pseudophakia
This document discusses pseudophakia, which is the condition where aphakia (absence of the natural lens) is corrected through implantation of an intraocular lens (IOL). It defines key terms like phakia, aphakia, and pseudophakia. The document also covers calculation of IOL power using the SRK formula, potential refractive outcomes like emmetropia, consecutive myopia or hypermetropia, and astigmatism. It serves as an introduction to pseudophakia for optometry students.
BBR 2024 Summer Sessions Interview Training
Qualitative research interview training by Professor Katrina Pritchard and Dr Helen Williams
Walmart Business+ and Spark Good for Nonprofits.pdf
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
Hindi varnamala | hindi alphabet PPT.pdf
हिंदी वर्णमाला पीपीटी, hindi alphabet PPT presentation, hindi varnamala PPT, Hindi Varnamala pdf, हिंदी स्वर, हिंदी व्यंजन, sikhiye hindi varnmala, dr. mulla adam ali, hindi language and literature, hindi alphabet with drawing, hindi alphabet pdf, hindi varnamala for childrens, hindi language, hindi varnamala practice for kids, https://www.drmullaadamali.com
How to Setup Warehouse & Location in Odoo 17 Inventory
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
Bed Making ( Introduction, Purpose, Types, Articles, Scientific principles, N...
Topic : Bed making
Subject : Nursing Foundation
More Related Content
More from arya das
Vision therapy arya
Vision therapy uses various techniques to actively train and improve visual skills. It aims to establish efficient binocular vision through tasks that target issues like amblyopia, strabismus, focusing, and eye coordination. Treatment involves procedures done at home and in the office using instruments like lenses, prisms, occlusion, and computer programs. Success depends on accurate diagnosis, a tailored approach for each patient, and their consistent participation in frequent sessions over time.
Visual hallucinations arya
The document summarizes Charles Bonnet syndrome, which causes visual hallucinations in people with vision loss. It describes that the brain fills in missing visual information, sometimes creating fantasy images. People may see patterns, lines, or detailed scenes. The syndrome is caused by damage to the optic nerve or eye conditions like macular degeneration that cause vision loss. It affects mostly older adults who lose vision later in life. Educating patients and helping them cope can improve quality of life for those experiencing these hallucinations.
Orthoptic instruments arya
This document discusses various orthoptic instruments and their therapeutic uses. It describes major amblyoscopes, diploscopes, bar readers, stereogram cards, and pigeon cantonette stereoscopes which are used for fusional exercises, amblyopia therapy, and overcoming suppression. The synoptophore is explained in detail as a haploscopic device used for fusion exercises, antisuppression exercises, and treatment of abnormal retinal correspondence. Procedures for using instruments like the diploscope, cherioscope, and pigeon cantonette stereoscope are provided.
Emmetropization 2 2006
The visual system mechanisms that transform a visual signal into a biochemical signal for eye growth involve both afferent and efferent components located within the eye. Activity at a given retinal location controls the growth of the adjacent sclera. Key retinal components that regulate eye growth include acetylcholine, dopamine, glucagon, and components in the choroid such as retinoic acid. During myopic eye growth, the sclera exhibits increased creep rates and decreased proteoglycan synthesis. Atropine treatment has been shown to significantly reduce the progression of myopia compared to controls.
Corneal anatomy ......arya
The cornea is the transparent outer coat of the eye. It has 5 layers - epithelium, Bowman's membrane, stroma, Descemet's membrane, and endothelium. The stroma makes up around 90% of the corneal thickness and contains collagen fibrils and keratocytes. The cornea is avascular but receives nutrients from blood vessels in the surrounding tissues. It has sensory innervation from the trigeminal nerve but lacks blood vessels in its central region to maintain transparency.
Catoptric images
This document discusses catoptric images, also known as Purkinje-Samson images, which are images formed inside the eye by reflections at the refractive interfaces of the eye. It notes that images 1-3 are formed by reflections at the anterior cornea, posterior cornea, and anterior lens surfaces, and are virtual and erect, while image 4 from the posterior lens surface is real and inverted. Some common uses of Purkinje images are to locate axes and angles in the eye, measure corneal curvature, and measure eye movements and lens changes during accommodation. Clinical uses include testing for cataracts and measuring lens position and curvature using keratometry and the Hirschberg corneal reflex test.
Bifocals by arya and sadaf
This document discusses different types of bifocal lenses, including their advantages and disadvantages. It describes split, cemented, solid, executive, fused (flat top, round top, ribbon, panoptic), kryptok, and ultex bifocals. The key types are:
- Solid bifocals which have minimal image jump and chromatic aberration but restricted distance vision.
- Fused bifocals which have an invisible dividing line but transverse chromatic aberration. Kryptok bifocals address this issue but the button produces reading aberrations.
- Executive bifocals which have a wide reading field of view and improved optics but can be thick for high prescriptions.
Anat n physio of cornea......... arya
The cornea is the transparent outer coat of the eye. It has 5 layers - epithelium, Bowman's membrane, stroma, Descemet's membrane, and endothelium. The stroma makes up around 90% of the corneal thickness and contains collagen fibrils and keratocytes. The cornea is avascular but receives nutrients from blood vessels in the surrounding tissues. It has sensory innervation from the trigeminal nerve but lacks blood vessels in its central region to maintain transparency.
9 maddox wing test.........arya
This document describes a test used to measure heterophoria at near distance. The test works by having the right eye see a vertical and horizontal arrow while the left eye sees vertical and horizontal lines of numbers. The patient reports which numbers the arrows appear to point to in order to measure any horizontal, vertical, or cyclophoric deviations between the two eyes. Key advantages are that it allows simultaneous measurement of multiple types of phorias and relies on accommodation, though it is subjective and cannot be used if accommodation is impaired.
Segment archetecture by arya and sadaf
The document discusses various parameters for designing progressive addition lenses including the centration point, segment shape, size, height, depth, and drop. It notes the reading portion should provide clear vision like the distance portion and the optical centers of the distance and near zones should coincide to avoid prismatic effects. Methods for determining the patient's fitting height are discussed and sources consulted in designing the lenses are acknowledged.
retinoscopy
1. The document discusses various techniques used in retinoscopy including Welsch Allen retinoscopy, plane mirror retinoscopy, and concave mirror retinoscopy.
2. It also summarizes methods for determining prescriptions including subtraction of distance and effects of cycloplegic drops.
3. Guidelines are provided for prescribing glasses for conditions like myopia, hyperopia, and astigmatism with considerations for age and other factors.
Lens material gives a brief description about the materials being commonly us...
Crown glass is a lens material that resists scratching and is not easily affected by the environment. It has a refractive index of 1.523 and is low in chromatic aberration. Hi-index plastics are very impact resistant materials, with Trivex being a triperformance lens material that offers superior optics, impact resistance, and is ultra light weight. Laminated lenses are made of two or more layers of materials and lamination can be done to polarizing lenses to reduce glare or to increase impact resistance.
Anatomy and physiology of eye, general introduction.
This document summarizes the glands and vasculature of the conjunctiva. There are three main types of glands - mucin secretory glands, accessory lacrimal glands, and goblet cells. The mucin glands include globlet cells, Henle's glands, and glands of Manz. The accessory lacrimal glands include glands of Krause, glands of Wolffring, and rudimentary accessory lacrimal glands. The conjunctiva receives blood supply from the marginal arterial arcade, peripheral arterial arcade, and anterior ciliary arteries. Lymphatic drainage is to the periauricular and submandibular lymph nodes. Nerve supply
EXTRA OCULAR MUSCLES
This document discusses eye movements and the anatomy of the extraocular muscles. It describes the different types of eye movements including smooth pursuit, saccades, fixation, and reflex eye movements. It also outlines the actions and innervation of the individual extraocular muscles - the four rectus muscles and two oblique muscles. The document provides details on motor units, fiber types, and recruitment patterns in extraocular muscles.
Pseudophakia
This document discusses pseudophakia, which is the condition where aphakia (absence of the natural lens) is corrected through implantation of an intraocular lens (IOL). It defines key terms like phakia, aphakia, and pseudophakia. The document also covers calculation of IOL power using the SRK formula, potential refractive outcomes like emmetropia, consecutive myopia or hypermetropia, and astigmatism. It serves as an introduction to pseudophakia for optometry students.
More from arya das (15)
Lens material gives a brief description about the materials being commonly us...
Lens material gives a brief description about the materials being commonly us...
Anatomy and physiology of eye, general introduction.
Anatomy and physiology of eye, general introduction.
Recently uploaded
BBR 2024 Summer Sessions Interview Training
Qualitative research interview training by Professor Katrina Pritchard and Dr Helen Williams
Walmart Business+ and Spark Good for Nonprofits.pdf
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
Hindi varnamala | hindi alphabet PPT.pdf
हिंदी वर्णमाला पीपीटी, hindi alphabet PPT presentation, hindi varnamala PPT, Hindi Varnamala pdf, हिंदी स्वर, हिंदी व्यंजन, sikhiye hindi varnmala, dr. mulla adam ali, hindi language and literature, hindi alphabet with drawing, hindi alphabet pdf, hindi varnamala for childrens, hindi language, hindi varnamala practice for kids, https://www.drmullaadamali.com
How to Setup Warehouse & Location in Odoo 17 Inventory
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
Bed Making ( Introduction, Purpose, Types, Articles, Scientific principles, N...
Topic : Bed making
Subject : Nursing Foundation
Wound healing PPT
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...Nguyen Thanh Tu Collection
https://app.box.com/s/qhtvq32h4ybf9t49ku85x0n3xl4jhr15clinical examination of hip joint (1).pdf
described clinical examination all orthopeadic conditions .
Solutons Maths Escape Room Spatial .pptx
Solutions of Puzzles of Mathematics Escape Room Game in Spatial.io
Temple of Asclepius in Thrace. Excavation results
The temple and the sanctuary around were dedicated to Asklepios Zmidrenus. This name has been known since 1875 when an inscription dedicated to him was discovered in Rome. The inscription is dated in 227 AD and was left by soldiers originating from the city of Philippopolis (modern Plovdiv).
Gender and Mental Health - Counselling and Family Therapy Applications and In...
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
Mule event processing models | MuleSoft Mysore Meetup #47
Mule event processing models | MuleSoft Mysore Meetup #47
Event Link:- https://meetups.mulesoft.com/events/details/mulesoft-mysore-presents-mule-event-processing-models/
Agenda
● What is event processing in MuleSoft?
● Types of event processing models in Mule 4
● Distinction between the reactive, parallel, blocking & non-blocking processing
For Upcoming Meetups Join Mysore Meetup Group - https://meetups.mulesoft.com/mysore/YouTube:- youtube.com/@mulesoftmysore
Mysore WhatsApp group:- https://chat.whatsapp.com/EhqtHtCC75vCAX7gaO842N
Speaker:-
Shivani Yasaswi - https://www.linkedin.com/in/shivaniyasaswi/
Organizers:-
Shubham Chaurasia - https://www.linkedin.com/in/shubhamchaurasia1/
Giridhar Meka - https://www.linkedin.com/in/giridharmeka
Priya Shaw - https://www.linkedin.com/in/priya-shaw
ANATOMY AND BIOMECHANICS OF HIP JOINT.pdf
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
How to deliver Powerpoint Presentations.pptx
"How to make and deliver dynamic presentations by making it more interactive to captivate your audience attention"
Recently uploaded (20)
Walmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdf
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
Chapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering.pptx
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
Bed Making ( Introduction, Purpose, Types, Articles, Scientific principles, N...
Bed Making ( Introduction, Purpose, Types, Articles, Scientific principles, N...
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
NEWSPAPERS - QUESTION 1 - REVISION POWERPOINT.pptx
Gender and Mental Health - Counselling and Family Therapy Applications and In...
Gender and Mental Health - Counselling and Family Therapy Applications and In...
Mule event processing models | MuleSoft Mysore Meetup #47
Mule event processing models | MuleSoft Mysore Meetup #47
Tearfilm by arya
- 2. CONTENTS • General introduction • Structure & function of tear film in human eye • Examination of tear film in contact lens wear • Tear production during contact lens wear • Tear film ph during contact lens wear • Tear film temperature during contact lens wear.
- 13. .