Radiation and glare can affect the eye in various ways. Ionizing radiation like x-rays and gamma rays can directly damage eye tissues on a cellular level by ionizing atoms. This can lead to conditions like keratitis, cataracts, and retinal damage. Ultraviolet radiation is associated with pterygium, pinguecula, cataracts, and age-related macular degeneration due to its photochemical effects. Infrared radiation poses a thermal damage risk and can cause retinal burns. Visible light also carries photochemical risks like solar retinopathy from short exposures to intense brightness. Glare reduces image contrast and quality, causing disability or discomfort, and is tested for using devices like the BAT tester in
The document discusses eye safety and protective eyewear. It notes that eye injuries often occur due to a failure to wear eye protection, and that OSHA regulates safety eyewear standards. Different types of protective eyewear are appropriate for different hazards like impacts, heat, chemicals, dusts, and radiation. Safety glasses, goggles, and face shields each provide protection but have specific uses depending on the hazard. Maintaining and replacing damaged eyewear is important for safety.
This document discusses best practices for pediatric dispensing. Some key points include:
- Pediatric dispensing involves fitting children from babies to teenagers with eyewear. It differs from adult dispensing in requiring more fun and engagement of both the child and parents.
- Frame design considerations for children include lower crests, larger frontal angles, and ability to shorten sides for younger faces still developing. Metal frames are most common.
- Polycarbonate lenses are ideal due to their impact resistance and safety, though fashion and comfort are also priorities that require balancing durability needs. Regular lens replacement is important as scratches reduce impact resistance.
- Communicating effectively with children using terms, demonstrations, questions, and humor helps
This document discusses occupational ocular problems in various fields including sports, driving, agriculture, and industries. It begins with an introduction to environmental and occupational optometry. It then provides a classification of occupational ocular hazards and their effects, which can include traumatic injuries, harmful exposures, undiagnosed diseases, eyestrain, and other complaints. Specific occupational ocular problems are discussed for each of the given fields. Protective eyewear options are also reviewed for different types of sports to prevent ocular injuries and radiation exposure.
This document discusses various types of occupational eye hazards and injuries. It categorizes hazards as mechanical, chemical, thermal, electrical, and radiation. Common injuries from each include dust and particle irritation, acid or alkali burns, welding flash burns, and radiation damage from lasers, UV light, or infrared sources. The highest risk occupations involve household/cleaning chemicals, workshops with tools/particles, and certain sports. Prevention relies on proper use of protective equipment like goggles and removing hazards at their source when possible.
This document discusses potential health hazards from prolonged visual display unit (VDU) use, including asthenopia (eye strain), dermatitis, epilepsy, and radiation. Asthenopia is a very common complaint, experienced by 40% of VDU operators, and can be caused by ocular issues, personal factors like stress or migraine, and workstation design problems such as glare, lighting, and color contrast. Proper workstation setup and regular breaks can help prevent asthenopia and other health issues associated with extensive VDU use.
The document discusses contact lens design. It describes how contact lenses are thin shells that fit directly on the eye's surface. Soft contact lens design considers factors like diameter, thickness, curvature, edge design and lens material properties. Proper design is important for comfort, safety and vision. Soft lens design aims to closely match the eye's dimensions. High water lenses provide better comfort while low water lenses last longer. Rigid gas permeable lens design seeks an ideal fit through optimal design and material selection. The goal is comfortable, clear vision with minimal eye response.
The document discusses various tools used for optical repairs, including different types of optical screwdrivers, flaring pliers, and screw-lift tools. It also describes the different types of nose pad assemblies, including screw-on and push-on pads. The document provides guidance on replacing broken parts like temples, plastic earpiece covers, and nose pads on frames. It notes that soldering, either with a flame or electric unit, is usually required to repair broken metal portions of frames.
Radiation and glare can affect the eye in various ways. Ionizing radiation like x-rays and gamma rays can directly damage eye tissues on a cellular level by ionizing atoms. This can lead to conditions like keratitis, cataracts, and retinal damage. Ultraviolet radiation is associated with pterygium, pinguecula, cataracts, and age-related macular degeneration due to its photochemical effects. Infrared radiation poses a thermal damage risk and can cause retinal burns. Visible light also carries photochemical risks like solar retinopathy from short exposures to intense brightness. Glare reduces image contrast and quality, causing disability or discomfort, and is tested for using devices like the BAT tester in
The document discusses eye safety and protective eyewear. It notes that eye injuries often occur due to a failure to wear eye protection, and that OSHA regulates safety eyewear standards. Different types of protective eyewear are appropriate for different hazards like impacts, heat, chemicals, dusts, and radiation. Safety glasses, goggles, and face shields each provide protection but have specific uses depending on the hazard. Maintaining and replacing damaged eyewear is important for safety.
This document discusses best practices for pediatric dispensing. Some key points include:
- Pediatric dispensing involves fitting children from babies to teenagers with eyewear. It differs from adult dispensing in requiring more fun and engagement of both the child and parents.
- Frame design considerations for children include lower crests, larger frontal angles, and ability to shorten sides for younger faces still developing. Metal frames are most common.
- Polycarbonate lenses are ideal due to their impact resistance and safety, though fashion and comfort are also priorities that require balancing durability needs. Regular lens replacement is important as scratches reduce impact resistance.
- Communicating effectively with children using terms, demonstrations, questions, and humor helps
This document discusses occupational ocular problems in various fields including sports, driving, agriculture, and industries. It begins with an introduction to environmental and occupational optometry. It then provides a classification of occupational ocular hazards and their effects, which can include traumatic injuries, harmful exposures, undiagnosed diseases, eyestrain, and other complaints. Specific occupational ocular problems are discussed for each of the given fields. Protective eyewear options are also reviewed for different types of sports to prevent ocular injuries and radiation exposure.
This document discusses various types of occupational eye hazards and injuries. It categorizes hazards as mechanical, chemical, thermal, electrical, and radiation. Common injuries from each include dust and particle irritation, acid or alkali burns, welding flash burns, and radiation damage from lasers, UV light, or infrared sources. The highest risk occupations involve household/cleaning chemicals, workshops with tools/particles, and certain sports. Prevention relies on proper use of protective equipment like goggles and removing hazards at their source when possible.
This document discusses potential health hazards from prolonged visual display unit (VDU) use, including asthenopia (eye strain), dermatitis, epilepsy, and radiation. Asthenopia is a very common complaint, experienced by 40% of VDU operators, and can be caused by ocular issues, personal factors like stress or migraine, and workstation design problems such as glare, lighting, and color contrast. Proper workstation setup and regular breaks can help prevent asthenopia and other health issues associated with extensive VDU use.
The document discusses contact lens design. It describes how contact lenses are thin shells that fit directly on the eye's surface. Soft contact lens design considers factors like diameter, thickness, curvature, edge design and lens material properties. Proper design is important for comfort, safety and vision. Soft lens design aims to closely match the eye's dimensions. High water lenses provide better comfort while low water lenses last longer. Rigid gas permeable lens design seeks an ideal fit through optimal design and material selection. The goal is comfortable, clear vision with minimal eye response.
The document discusses various tools used for optical repairs, including different types of optical screwdrivers, flaring pliers, and screw-lift tools. It also describes the different types of nose pad assemblies, including screw-on and push-on pads. The document provides guidance on replacing broken parts like temples, plastic earpiece covers, and nose pads on frames. It notes that soldering, either with a flame or electric unit, is usually required to repair broken metal portions of frames.
This document summarizes the manufacturing process for rigid gas permeable (RGP) contact lenses and soft contact lenses. For RGP lenses, care must be taken during blocking, cutting, polishing, and solvent cleaning. Lathing and molding are two common manufacturing methods, with lathing being older but able to produce a wider range of designs, while molding allows for higher volume production and more complex designs. For soft lenses, common manufacturing methods include cast molding, lathing, spin casting, and combinations of these methods. Stabilized soft molding has advantages for high volume production.
Soft Contact Lenses: Material, Fitting, and EvaluationZahra Heidari
Soft contact lenses are made from various materials like silicone and hydrogels, with advantages like comfort and easier fitting but disadvantages like potential for complications. The document discusses the history and evolution of contact lens materials, characteristics of different lens types, factors to consider for patient fitting like base curve and power selection, and how to evaluate fit and make modifications if needed. Proper patient selection and evaluation is important for successful fitting of soft contact lenses.
This document discusses various materials used in ophthalmic lenses. It describes the optical, mechanical, electrical, chemical and thermal properties of different lens materials like glass and plastics. Specifically, it provides details on the properties of different types of glass lenses including crown glass, flint glass, barium crown glass, and high index glass. It also discusses plastic lenses and highlights the use of high index lenses for higher prescriptions to reduce lens thickness.
This document discusses contact lens wear and corneal health. It outlines the key factors for successful contact lens wear, including 12 hours of comfortable wear and good end-of-day comfort. It also discusses consumers' priorities around contact lens health and definitions of a "healthier contact lens." Silicone hydrogel lenses are highlighted as improving oxygen transmission and reducing complications compared to conventional lenses. Proper lens care, handling, materials selection and follow-up care are emphasized to prevent complications and support corneal health with contact lens wear.
1. The document discusses the benefits of disposable contact lenses and frequent replacement programs (FRP) for providing healthier contact lens wear. It notes that consumers prioritize healthier lenses that do not cause infections or complications.
2. Disposable and FRP lenses are presented as ways to eliminate obstacles to successful contact lens wear like deposits, films, irritation and reduced comfort by replacing lenses frequently. They provide benefits like superior comfort, hygiene, and convenience.
3. The document outlines different types of disposable and FRP lenses available based on modality, wearing time, material, correction, and discusses their advantages over traditional lenses in promoting ocular health, satisfaction, and retention of contact lens wearers.
This document discusses the effects of ultraviolet (UV) radiation on the eyes. It begins by explaining what UV rays are and their sources like sunlight. Prolonged exposure to UV rays can cause physiological issues like sunburn, skin aging, and skin cancers. In the eyes, UV exposure is associated with conditions like pterygium, pinguecula, photokeratitis, cataract, age-related macular degeneration, and retinal damage. To help protect the eyes, the document recommends wearing sunglasses with UV protection, as well as blue light-blocking lenses.
The document discusses different lens materials used in ophthalmic lenses, including their properties and characteristics. It covers natural materials like quartz, glass materials like crown glass and flint glass, and plastic materials like CR-39, polycarbonate, high index plastics, and Trivex. For each material, it provides details on composition, refractive index, Abbe value, advantages and disadvantages. The document aims to educate about different lens materials and their properties for lens manufacturing.
Frame measurements are essential for ordering prescription glasses correctly. The boxing system uses geometric center, lens size (eye size A), depth (B), and width (C) in millimeters. Distance between lenses (DBL) and geometric center distance (GCD) are also in millimeters. Temple length is overall length from center barrel to end. Frames are marked with eye size, DBL, temple length, manufacturer, and country of origin. Safety frames are marked with "Z87". Metal frames indicate gold content in karats.
This document summarizes the process of glazing, which involves fitting lenses into spectacle frames. It discusses the key steps of laying off markings on the lens, lens cutting and edging, and fitting. Lens cutting historically involved manually outlining and chipping lenses, but now is done automatically by edgers. Edging shapes the lens to the frame and creates a bevel. Edging can be done manually with ceramic or diamond wheels or automatically through pattern or patternless edging, where data from a frame tracer is used to directly edge the lens without a pattern. The lens is then fitted into the frame.
Special contact lenses include:
Daily-wear lenses are removed nightly and replaced on an individualized schedule. Extended-wear lenses are worn overnight but removed at least weekly for cleaning. Disposable lenses are removed nightly and replaced daily, weekly, biweekly, or monthly.
Colored lenses change eye color appearance and circle lenses make the iris appear bigger, but over-the-counter colored contacts pose health risks. Toric lenses correct astigmatism but sometimes not as well as rigid gas permeable lenses. Bifocal or multifocal lenses correct nearsightedness, farsightedness, astigmatism, and presbyopia but visual quality is often not as good as
This document discusses several key considerations for providing eye care to elderly patients. It notes that the elderly population is one of the fastest growing internet users and will require more frequent eye exams. It highlights that aging brings natural changes to vision that should be addressed sensitively. Examinations and dispensing processes should be thorough and explain recommendations in detail while showing personal attention. Multiple pairs of eyewear are often needed to meet the varied visual needs of elderly patients for tasks like reading, computers, and driving. Lens material, coatings, and frame fit considerations are especially important for comfort.
Types of pediatric contact lens [autosaved]Bipin Koirala
This document discusses pediatric contact lens fitting and evaluation. It begins by outlining the advantages of contact lenses over glasses for children, including a wider field of view. Key considerations for fitting include small eye size, tear production, and compliance. Conditions that may require lenses include refractive errors, amblyopia treatment, and aphakia following cataract surgery. Evaluations include testing visual acuity and ocular health. Lens options discussed are silicone, hydrogel, and rigid gas permeable lenses. Special fitting considerations for aphakic children include initially high powers of +20D to +35D, depending on age.
This document discusses different types of tinted lenses, including their purposes and materials. It covers integral tints produced during manufacturing by adding metals or metal oxides to glass. Surface coatings deposit metallic oxides onto glass through evaporation. Plastic lenses are dyed by immersing them in organic dyes. Various tint colors like yellow, red, purple, and brown are explained in terms of the materials used and their applications. Integral tints provide consistent tinting while surface coatings and dyes allow tinting of any prescription.
This document discusses various complications that can arise from contact lens wear, including dry eye, meibomian gland dysfunction, papillary conjunctivitis, neovascularization, corneal staining, acanthamoeba keratitis, endothelial polymegathism, and more. It provides details on the signs, symptoms, causes, diagnosis, and management of each complication. Poor compliance, inadequate lens-cornea relationship, insufficient oxygen transmissibility, and lens incompatibility can all contribute to the development of contact lens related complications if not properly cared for and maintained.
Rigid gas permeable (RGP) contact lenses are rigid plastic lenses that transmit oxygen. They have inherent rigidity like PMMA but are semi-soft due to oxygen permeability. RGP lenses provide clearer vision than soft lenses, are more durable, and less expensive. However, they require an adaptation period and have a higher risk of dislodging than soft lenses. Key design features of RGP lenses include the back surface design, thickness, edge configuration, and diameter, which affect lens fit, movement, comfort, and vision. RGP lenses are used to correct astigmatism and presbyopia and for conditions like keratoconus.
This document provides information on lens materials used in ophthalmic lenses. It discusses the history and properties of glass materials including crown glass, flint glass, and high index glass. It also discusses plastic materials like CR-39, polycarbonate, high index plastic, and Trivex. The key optical properties of lenses discussed are Abbe value, reflectance, refractive index, and absorption. Mechanical properties like specific gravity, impact resistance, and scratch resistance are also covered.
Therapeutic contact lenses are used for therapeutic, diagnostic and cosmetic purposes to treat various ocular surface diseases and conditions. They provide mechanical protection and support to the cornea, maintain corneal epithelial hydration, and can be used to deliver medications to the eye. The type of therapeutic contact lens chosen depends on the specific condition being treated and should aim to maximize oxygen to the cornea unless the eye has no vision. Common complications include ocular redness, minor corneal edema and lens deposits which require regular follow up visits.
Aftercare and follow up visit of contact lens_ Tariq Al FayadTariq Al Fayad
Aftercare visits for contact lens wearers are important to monitor for any complications and ensure long term successful wear. The first visit should be 2-3 weeks after initial fitting to assess vision, lens fit and comfort. Regular follow ups allow objective examination of the eye with and without lenses and monitoring for issues like dryness, deposits, corneal staining or changes in vision. Abnormal signs are managed by addressing lens fit, care or replacing lenses if needed to maintain healthy contact lens wear.
Contact lens fitting in keratoconus copykamal thakur
This document discusses keratoconus and contact lens fitting options for keratoconus patients. It begins by describing the different types and stages of keratoconus cones. It then discusses the various contact lens options including soft lenses, rigid gas permeable lenses, and scleral lenses. For rigid gas permeable lenses, it explains the different fitting philosophies of apical bearing, apical clearance, and three point touch. Specific lens designs like Rose K2 and scleral lenses are also summarized. Key factors for determining the appropriate contact lens are also listed.
Eye protection ppe toolbox talk trainingAlan Bassett
Much of the work we carry out day to day present’s significant hazards with respect to your eyes. Your eyes can be harmed in many ways from chemical slashes, welding flashes and inclusions of metallic particles.
Even ‘minor’ eye injuries can cause life-long vision problems and suffering a simple scratch from sawdust, cement, or drywall can cause corneal erosion that is recurrently painful...
Safety Glasses & Protective Eyewear – All About Eyes ProtectionGarment Printing
Safety glasses offer the best protection for our eyes against various hazards you can encounter at your job or in daily life. PPE glasses are made according to the highest quality requirements. Frames and filters are both certified to guarantee the finest quality. Your prescription and protection glasses must fit properly to provide the necessary protection for your eyes.
There are a variety of types that may be worn over most prescription eyeglasses to ensure your safety at work.
Your eyes are irreplaceable. There are numerous risks at industrial workplaces that can cause either short-term or long-term damage to the eyes. These eye protection glasses are vital for preventing eye damage.
This document summarizes the manufacturing process for rigid gas permeable (RGP) contact lenses and soft contact lenses. For RGP lenses, care must be taken during blocking, cutting, polishing, and solvent cleaning. Lathing and molding are two common manufacturing methods, with lathing being older but able to produce a wider range of designs, while molding allows for higher volume production and more complex designs. For soft lenses, common manufacturing methods include cast molding, lathing, spin casting, and combinations of these methods. Stabilized soft molding has advantages for high volume production.
Soft Contact Lenses: Material, Fitting, and EvaluationZahra Heidari
Soft contact lenses are made from various materials like silicone and hydrogels, with advantages like comfort and easier fitting but disadvantages like potential for complications. The document discusses the history and evolution of contact lens materials, characteristics of different lens types, factors to consider for patient fitting like base curve and power selection, and how to evaluate fit and make modifications if needed. Proper patient selection and evaluation is important for successful fitting of soft contact lenses.
This document discusses various materials used in ophthalmic lenses. It describes the optical, mechanical, electrical, chemical and thermal properties of different lens materials like glass and plastics. Specifically, it provides details on the properties of different types of glass lenses including crown glass, flint glass, barium crown glass, and high index glass. It also discusses plastic lenses and highlights the use of high index lenses for higher prescriptions to reduce lens thickness.
This document discusses contact lens wear and corneal health. It outlines the key factors for successful contact lens wear, including 12 hours of comfortable wear and good end-of-day comfort. It also discusses consumers' priorities around contact lens health and definitions of a "healthier contact lens." Silicone hydrogel lenses are highlighted as improving oxygen transmission and reducing complications compared to conventional lenses. Proper lens care, handling, materials selection and follow-up care are emphasized to prevent complications and support corneal health with contact lens wear.
1. The document discusses the benefits of disposable contact lenses and frequent replacement programs (FRP) for providing healthier contact lens wear. It notes that consumers prioritize healthier lenses that do not cause infections or complications.
2. Disposable and FRP lenses are presented as ways to eliminate obstacles to successful contact lens wear like deposits, films, irritation and reduced comfort by replacing lenses frequently. They provide benefits like superior comfort, hygiene, and convenience.
3. The document outlines different types of disposable and FRP lenses available based on modality, wearing time, material, correction, and discusses their advantages over traditional lenses in promoting ocular health, satisfaction, and retention of contact lens wearers.
This document discusses the effects of ultraviolet (UV) radiation on the eyes. It begins by explaining what UV rays are and their sources like sunlight. Prolonged exposure to UV rays can cause physiological issues like sunburn, skin aging, and skin cancers. In the eyes, UV exposure is associated with conditions like pterygium, pinguecula, photokeratitis, cataract, age-related macular degeneration, and retinal damage. To help protect the eyes, the document recommends wearing sunglasses with UV protection, as well as blue light-blocking lenses.
The document discusses different lens materials used in ophthalmic lenses, including their properties and characteristics. It covers natural materials like quartz, glass materials like crown glass and flint glass, and plastic materials like CR-39, polycarbonate, high index plastics, and Trivex. For each material, it provides details on composition, refractive index, Abbe value, advantages and disadvantages. The document aims to educate about different lens materials and their properties for lens manufacturing.
Frame measurements are essential for ordering prescription glasses correctly. The boxing system uses geometric center, lens size (eye size A), depth (B), and width (C) in millimeters. Distance between lenses (DBL) and geometric center distance (GCD) are also in millimeters. Temple length is overall length from center barrel to end. Frames are marked with eye size, DBL, temple length, manufacturer, and country of origin. Safety frames are marked with "Z87". Metal frames indicate gold content in karats.
This document summarizes the process of glazing, which involves fitting lenses into spectacle frames. It discusses the key steps of laying off markings on the lens, lens cutting and edging, and fitting. Lens cutting historically involved manually outlining and chipping lenses, but now is done automatically by edgers. Edging shapes the lens to the frame and creates a bevel. Edging can be done manually with ceramic or diamond wheels or automatically through pattern or patternless edging, where data from a frame tracer is used to directly edge the lens without a pattern. The lens is then fitted into the frame.
Special contact lenses include:
Daily-wear lenses are removed nightly and replaced on an individualized schedule. Extended-wear lenses are worn overnight but removed at least weekly for cleaning. Disposable lenses are removed nightly and replaced daily, weekly, biweekly, or monthly.
Colored lenses change eye color appearance and circle lenses make the iris appear bigger, but over-the-counter colored contacts pose health risks. Toric lenses correct astigmatism but sometimes not as well as rigid gas permeable lenses. Bifocal or multifocal lenses correct nearsightedness, farsightedness, astigmatism, and presbyopia but visual quality is often not as good as
This document discusses several key considerations for providing eye care to elderly patients. It notes that the elderly population is one of the fastest growing internet users and will require more frequent eye exams. It highlights that aging brings natural changes to vision that should be addressed sensitively. Examinations and dispensing processes should be thorough and explain recommendations in detail while showing personal attention. Multiple pairs of eyewear are often needed to meet the varied visual needs of elderly patients for tasks like reading, computers, and driving. Lens material, coatings, and frame fit considerations are especially important for comfort.
Types of pediatric contact lens [autosaved]Bipin Koirala
This document discusses pediatric contact lens fitting and evaluation. It begins by outlining the advantages of contact lenses over glasses for children, including a wider field of view. Key considerations for fitting include small eye size, tear production, and compliance. Conditions that may require lenses include refractive errors, amblyopia treatment, and aphakia following cataract surgery. Evaluations include testing visual acuity and ocular health. Lens options discussed are silicone, hydrogel, and rigid gas permeable lenses. Special fitting considerations for aphakic children include initially high powers of +20D to +35D, depending on age.
This document discusses different types of tinted lenses, including their purposes and materials. It covers integral tints produced during manufacturing by adding metals or metal oxides to glass. Surface coatings deposit metallic oxides onto glass through evaporation. Plastic lenses are dyed by immersing them in organic dyes. Various tint colors like yellow, red, purple, and brown are explained in terms of the materials used and their applications. Integral tints provide consistent tinting while surface coatings and dyes allow tinting of any prescription.
This document discusses various complications that can arise from contact lens wear, including dry eye, meibomian gland dysfunction, papillary conjunctivitis, neovascularization, corneal staining, acanthamoeba keratitis, endothelial polymegathism, and more. It provides details on the signs, symptoms, causes, diagnosis, and management of each complication. Poor compliance, inadequate lens-cornea relationship, insufficient oxygen transmissibility, and lens incompatibility can all contribute to the development of contact lens related complications if not properly cared for and maintained.
Rigid gas permeable (RGP) contact lenses are rigid plastic lenses that transmit oxygen. They have inherent rigidity like PMMA but are semi-soft due to oxygen permeability. RGP lenses provide clearer vision than soft lenses, are more durable, and less expensive. However, they require an adaptation period and have a higher risk of dislodging than soft lenses. Key design features of RGP lenses include the back surface design, thickness, edge configuration, and diameter, which affect lens fit, movement, comfort, and vision. RGP lenses are used to correct astigmatism and presbyopia and for conditions like keratoconus.
This document provides information on lens materials used in ophthalmic lenses. It discusses the history and properties of glass materials including crown glass, flint glass, and high index glass. It also discusses plastic materials like CR-39, polycarbonate, high index plastic, and Trivex. The key optical properties of lenses discussed are Abbe value, reflectance, refractive index, and absorption. Mechanical properties like specific gravity, impact resistance, and scratch resistance are also covered.
Therapeutic contact lenses are used for therapeutic, diagnostic and cosmetic purposes to treat various ocular surface diseases and conditions. They provide mechanical protection and support to the cornea, maintain corneal epithelial hydration, and can be used to deliver medications to the eye. The type of therapeutic contact lens chosen depends on the specific condition being treated and should aim to maximize oxygen to the cornea unless the eye has no vision. Common complications include ocular redness, minor corneal edema and lens deposits which require regular follow up visits.
Aftercare and follow up visit of contact lens_ Tariq Al FayadTariq Al Fayad
Aftercare visits for contact lens wearers are important to monitor for any complications and ensure long term successful wear. The first visit should be 2-3 weeks after initial fitting to assess vision, lens fit and comfort. Regular follow ups allow objective examination of the eye with and without lenses and monitoring for issues like dryness, deposits, corneal staining or changes in vision. Abnormal signs are managed by addressing lens fit, care or replacing lenses if needed to maintain healthy contact lens wear.
Contact lens fitting in keratoconus copykamal thakur
This document discusses keratoconus and contact lens fitting options for keratoconus patients. It begins by describing the different types and stages of keratoconus cones. It then discusses the various contact lens options including soft lenses, rigid gas permeable lenses, and scleral lenses. For rigid gas permeable lenses, it explains the different fitting philosophies of apical bearing, apical clearance, and three point touch. Specific lens designs like Rose K2 and scleral lenses are also summarized. Key factors for determining the appropriate contact lens are also listed.
Eye protection ppe toolbox talk trainingAlan Bassett
Much of the work we carry out day to day present’s significant hazards with respect to your eyes. Your eyes can be harmed in many ways from chemical slashes, welding flashes and inclusions of metallic particles.
Even ‘minor’ eye injuries can cause life-long vision problems and suffering a simple scratch from sawdust, cement, or drywall can cause corneal erosion that is recurrently painful...
Safety Glasses & Protective Eyewear – All About Eyes ProtectionGarment Printing
Safety glasses offer the best protection for our eyes against various hazards you can encounter at your job or in daily life. PPE glasses are made according to the highest quality requirements. Frames and filters are both certified to guarantee the finest quality. Your prescription and protection glasses must fit properly to provide the necessary protection for your eyes.
There are a variety of types that may be worn over most prescription eyeglasses to ensure your safety at work.
Your eyes are irreplaceable. There are numerous risks at industrial workplaces that can cause either short-term or long-term damage to the eyes. These eye protection glasses are vital for preventing eye damage.
This document provides training on eye protection and emergency eye wash procedures. It discusses eye injuries that occurred at AMEC in 2009-2010 and emphasizes the importance of wearing the proper eye protection for all jobs. Safety goggles or glasses must be worn under face shields. Emergency eye washes and safety showers must be clearly marked and located within 15 seconds of any work area involving chemical hazards. Proper use and maintenance of eye protection equipment and emergency equipment is required to prevent eye injuries at AMEC worksites.
Personal protective equipment.........aryaarya das
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.
This document provides information on personal protective equipment (PPE), focusing on eye and face protection, head protection, hand protection, and foot protection. It describes common hazards for each area and the appropriate PPE to use, such as safety glasses, hard hats, gloves, and steel-toe boots. Guidelines are provided for properly wearing, maintaining, and caring for different types of PPE.
The document provides an overview of personal protective equipment (PPE) for workers. It discusses 8 basic types of PPE: head protection, face and eye protection, foot protection, hand protection, body protection, hearing protection, fall protection, and respiratory protection. For each type of protection, it describes common equipment used such as hard hats, safety glasses, gloves, earplugs, and respirators. The document aims to educate workers about proper PPE selection and use to protect against workplace hazards.
The document provides information about personal protective equipment (PPE). It discusses the importance of PPE and outlines employer and employee responsibilities regarding PPE. Specific types of PPE are described in detail, including eye and face protection, head protection, hand protection, foot protection, and body protection. Training requirements for PPE are also summarized.
The document discusses personal protective equipment (PPE) for welding. It identifies various types of PPE including safety glasses, respirators, work boots, welding gloves, hard hats, earmuffs, welding helmets, leather aprons, welding pants, leggings, and protective arm sleeves. The PPE are meant to protect different parts of the body from hazards like flying debris, hazardous chemicals, extreme noise, heat, and sparks during welding work. The document also provides images and descriptions of the appropriate use of each type of PPE.
Personal Protective Equipment: Shielded Metal Arc WeldingShineRelleNunez
The document discusses personal protective equipment (PPE) used for welding. It provides a chart summarizing the types of PPE needed to protect different body parts, including eyes and face (welding helmet), lungs (respirators), exposed skin (fire resistant clothing and aprons), ears (ear muffs or plugs), and feet and hands (boots and gloves). The PPE protects welders from radiation, hot slag and sparks, intense light, fumes and oxides, heat, fires, burns, noise, and electric shock.
This document discusses personal protective equipment used to protect various parts of the body from workplace hazards. It describes equipment for the eyes and face like safety glasses and goggles, head protection like hard hats, hand protection like gloves, foot and leg protection like steel-toe boots, and ear protection like earplugs. The appropriate protective equipment depends on the specific risks like chemicals, heat, sharp objects, or falling objects in the workplace. Equipment must be maintained properly and chosen to ensure proper protection without increasing other risks.
Eye injuries occur at a rate of about 2000 per day, with 10-20% resulting in temporary or permanent vision loss. Common causes of eye injuries include flying debris, chemicals, and improper tool use. Different types of eye protection include safety glasses, goggles, and face shields, with the appropriate type depending on the job hazards. Jobs with high eye injury risks include auto repair, healthcare, manufacturing, and welding, and the proper protective eyewear can prevent injuries for each job. Employers are responsible for assessing eye hazards and ensuring employees have appropriate protection.
This document discusses the importance of eye and face protection in the workplace. It notes that thousands of people are blinded each year from preventable work-related eye injuries. It then describes the delicate structure of the eye and various types of accidents that can cause eye injuries, such as objects striking the eye, hazardous chemicals, swinging objects, and radiant energy sources like welding. The document outlines potential hazards like dusts, powders, fumes, mists, toxic gases and liquids, flying objects or particles, large objects, and electrical hazards. It recommends following safe work practices and using personal protective equipment like safety glasses, face shields, and welding helmets to protect the eyes and face from these workplace dangers.
The document discusses personal protective equipment (PPE) used in manufacturing workplaces to protect employees from various occupational hazards. It describes different types of PPE including head, eye, face, hearing, respiratory, hand, and body protection. For each type of PPE, the document outlines potential workplace hazards, selection criteria to match hazards, proper use, and care/maintenance requirements to help ensure PPE provides effective protection. The goal is to educate employees on OSHA regulations regarding hazard assessments and PPE training to protect worker safety.
The document discusses personal protective equipment (PPE) requirements for employers and employees. It states that employers must provide appropriate PPE at no cost to employees where workplace hazards cannot be eliminated through engineering or administrative controls. Employers must also train employees on proper PPE use and care. The document provides examples of common types of PPE including eye, head, hearing, foot, hand, and body protection and their purposes.
This document discusses personal protective equipment (PPE) requirements for concrete workers. It identifies common hazards like silica dust, chemical burns, falling objects, and rebar/nails. Regulations require head, eye, respiratory, hand, and foot protection. Hard hats must be worn for overhead hazards. Safety glasses with side shields or face shields protect from flying debris. Respirators approved for silica are required. Gloves suitable for the task and steel-toed boots offer hand and foot protection. Hearing protection is needed with loud equipment. PPE must be properly worn, maintained, and disposed of to be effective.
The document discusses safety measures to prevent ocular injuries. It identifies common causes of eye injuries like flying objects and chemicals. It recommends using the appropriate eye protection for different jobs and hazards, such as safety glasses for auto repair, polycarbonate lenses for driving, goggles and face shields for healthcare work, goggles and safety glasses for manufacturing, and welding goggles and helmets for welding. The use of proper eye protection can prevent countless eye injuries, and employers are required to assess hazards and ensure safety.
According to the Bureau of Labor Statistics, nearly three out of five workers are injured while failing to wear proper eye and face protection. OSHA has established standards for eye and face protection to help protect workers from hazards like impact, heat, chemicals, dust, and optical radiation. Employers must assess workplace hazards and provide appropriate protective equipment, such as safety glasses, goggles, or face shields, and train employees on proper use and care of PPE.
Three out of five workers are injured while failing to wear proper eye and face protection according to the Bureau of Labor Statistics. OSHA has established standards for eye and face protection to help protect workers from hazards like flying debris, heat, chemicals, dust, and optical radiation. Employers must provide appropriate protective equipment for the hazards present and train workers on proper use, care, and limitations of protective equipment.
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2. Eye Protection is protective gear for the eyes & sometime face,
designed to reduce the risk of injury
Introduction
3. • If you are not protect your eyes during some type of special work (welding,
chemical industry,etc.) than you can face the following Problems
• Keratitis
Foreign body (due to excessive absorbtion
of UV rays)
Chemical Injury Welding Maculopathy
4. If you have HUMAN MIND
than you definitely use
EYE PROTECTOR to save your eyes.
5. • Human eye is one of the most valuable assets to any work
• Any job they do requires clear & functional eye sight to become more
effective .
• OSHA regulations require that employers provide a safe work
environment which includes supplying the opportunity personal
protective eye wear.
• In our daily task we are all exposed to hazards that have the potential to
cause eye injuries
From –Dust, Grinding sparks, Chemicals
• To protect ourselves we have to wear
eye protection
Importance Of Eye Safety
6. • Aprons/ Gowns- Protect skin & clothing
• Gloves – Protect hands
• Respirators- Protect respiratory tract
from airborneinfectious
agent .
• Masks- Protect mouth & nose
• Face Shields – Protect face, mouth,
nose, eyes
• Goggle- Protect eyes
Types of PPE used in health care setting
7. • Spectacle
• Goggle
• Welding helmet
• Welding hand shield
• Hood
• Face shield
• Respiratory face pieces
Different Kind Of Eye Protection
8. • Most side shields are permanently attached to the eyewear
Spectacle
9. It Provide best protection against liquid pesticide & other toxic chemical.
Types of goggles
1.Eye cup goggles
a. Completely cover the eye socket to give all round
protection .
b. They have adjustable or elasticized headbands
c. It equipped with ventilation ports to allow air in
& prevent fogging.
d. some have –
Direct ventilation -
Prevent from large particles
Not prevent from Dust & Liquid
In Direct ventilatio –
Prevent from Large particles
Prevent from Dust & Liquid
Goggle
10. 2.Cover goggles
a. Design to be worn over spectacle
b. Thay have direct & Indirect ventilation
Cont.
11. • A welding helmet is a type of head gear used when performing
certain type of welding to protect our - Eyes
Face
Neck
From- Flash burn
UV rays
Sparks infrared light
Heat
Welding Helmet
12. • They are designed to give radiation & impact protection for the face
& eyes.
Welding Hand Shield
13. • These are come with impact resistance window
• Made by plastic
• Air supply system may also be available
• Types of hoods
a. Hoods with impact-resistant window
b. Hoods for dust, splash, and abrasive materials
protection
c. Hoods with radiation protection
d. Hoods for high-heat applications.
Hood (Non Rigid Helmets)
14. • It’s a transparent window(mask) to shield face & the eyes from injury .
• Shaded window are also available to provide glare reduction.
• Use to protect wearer’s entire face from hazards such as – splash , heat
,glare etc .
• Face shields are used where you have a very exposure to an airborne
substances.
• It should be worn with approved safety lasses ( because it is not
enough to protect eyes)
• Face shield may come with an adjustable spark deflector or brow
guard .
• That fit on the workers hard hat .
Face Shields
15. Types of Face shields
a. Face shields for impact,
Splash
Head & glare Protection
Radiation protection.
b. Face shield for
High heat application
Light
usually has wire screen window
Cont.
16. a) For Impact & splash protection
b) Radiation Protection
c) Loose fitting hoods
d) Loose fitting hoods for radiation protection
Respirator Facepieces
17.
18. Minimum eye protection –
Spectacle
Optimal eye protection –
Goggles worn with face shields
to provide eye & face protection
Flying Object, Dust, Winds
19. Minimum eye protection –
spectacle with filter lens
( for radiation protection)
Optimal eye protection-
Goggles with filter lens
(for radiation protection)
&
worn with face shield
(to provide eye & face Protection )
Heat, Glare, Sparks, and Splash from
Molten Metal
20. Minimum eye protection-
Goggle (Protect from dust & splash)
Optimal eye protection-
Hood with an air line
Abrasive Blasting Materials
22. Only one protection recommended
Goggle
(for dust &splash)
+
Face shields
(Eye & face protection)
+
Hoods
(for certain hazards activities
like – chemical spraying)
Acid Splash, Chemical Burns, etc.
23. Glass cutting- Goggle with filter lens (radiation protection)
Electric arc welding-
Spectacle with full welding helmet
(filter lens)
Injurious Rediation
24. Each sport has specific equipments & it’s important to clear define
them so sports person get the most suitable Lenses & Frames.
25. Sports Lens
Photochromatic lens –
The lens gets darker or lighter depending
on the intensity of the light.
Hydrophobic coating –
Causes water to glide over the lens
improving visibility.
Oil repellent coating(Oilophobic) –
Prevents finger or grease marks & makes
cleaning easier .
26. Anti reflective coating –
Reduce eye strain & eliminates interface
glare .
Polarizing treatment –
Eliminates glare from the sun on reflective surface (snow, Water etc)
Cont.
27. Sports Lens colours
Sports Colours
Skiing Brown, red/orange, neutral grey
Shooting Reddish brown,Orange,
Yellow to brown, Green
Golf Green, Neutral grey, Yellow to Brown
Water Sports Polarising Brown or Grey
Foot ball (fast moving ball sports) Amber
Cycling Polarising, Yellow
Tennis Green
Fishing Polarising
Running Green, Neutral grey
Motor sports Polarising, Yellow, Red
28. Badminton – goggles & glasses made with trivex
& Polycarbonate.
Baseball-
Batting Helmet with attached polycarbonate
face shield.
&
Fielding Sports google / sunglass with
shutter proof lenses .
Eye protectors for sports person
29. Bicycling – Performance sunglass with antifog &
anti scratch lens coating.
Fencing – full face protective mask made of a
fine mesh rigid metal.
Fishing- Polarized sunglass with anti reflective
coating.
Cont.
30. Field Hockey-
All player Sports goggles with secure head
straps .
Goalies Full helmet with face mask.
Ice Hockey- Full face helmet .
Cont.
32. Lacrosse – Full face helmet & padded face musk.
Paint ball- Full face helmet & padded face musk.
Recquet ball – sports goggles with trivex &
Polycarbonate lens .
Cont.
33. Tennis – Sports sunglass with a light weight wrapped
sport frame & polycarbonate lens .
Volley ball- Sports sunglass.
Water POLO- Swim goggles with Polycarbonate
& trivex lens
Cont.
34. Swimming & diving-
Swim goggles
&
diving goggle.
Skiing –
Goggles protect the eyes from flying ice &
snow & helmet protect your head from
accedent.
Cont.
35. For high mountain wear –
A wraparound frame with side shields to block out
glare from the sun’s rays & straight or adjustable
temples for good hold under a helmet or hat .
For mountain biking -
A light frame with slim temples for sleeping under
a helmet & good grip on the nose & temples to keep
the glasses on the face.
Cont.
36. For trail running-
A very light frame with suspended lenses for optimum ventilation &
maximum comfort over long period of time .
Water sports –
A flexible, wraparound frame to protect against splashing water but with
good ventilation to prevent fogging.
Cont.