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      • Bonnie Strickland Champion for Children’s Vision Award
      • Jenny Pomeroy Award for Excellence in Vision and Public Health
      • Joanne Angle Public Health Award
      • Rising Visionary Award
    • National Center for Children’s Vision and Eye Health
    • The Center for Vision and Population Health
    • Prevent Blindness Northeast Region
    • Living Well with Low Vision
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  • Contact Us
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  • Your Sight
    • The Eye & How We See
      • A Glossary of Eye and Vision Terms
    • What’s Your Risk of a Vision Problem?
    • Signs of Eye Disease and Vision Problems in Adults
    • Getting Professional Eye Care
      • How Often Should I Have an Eye Exam?
      • Who’s Who in Eye Care?
      • Getting Ready for My Eye Doctor Appointment
      • Getting Refractive Surgery
    • Health Insurance and Your Eyes
    • Medicare Benefits & Your Eyes
      • Welcome to Medicare Physical
      • Routine Eye Exams
      • Cataract Surgery Benefits
      • Glaucoma Medicare Benefits
      • Diabetes
      • Age-related Macular Degeneration
      • Prescription Drug Benefits
    • Vision Care Financial Assistance Information
    • Wearing Contact Lenses
      • Acanthamoeba Keratitis & Contact Lenses
    • 20/20 Vision at 40? – Take Care of Your Eyes!
    • Clinical Trials for Eye Diseases and Vision
    • Common Eye Myths
    • Diabetes and Your Eyes
    • The Glaucoma Community
    • Digital Devices and Your Eyes
      • Blue Light and Your Eyes
    • Taking Eye Drop Medications
    • Growing Older With Good Vision
      • Growing Older, Driving Safely
    • Healthy Living, Healthy Vision
    • Nutrition Supplements and Vision
    • Preventing Eye Injuries
      • First Aid for Eye Emergencies
      • Eye Safety at Home
      • Eye Safety at Work
        • Ten Ways to Prevent Eye Injuries at Work
      • Sports Eye Safety
        • Recommended Sports Eye Protectors
        • Tips for Buying Sports Eye Protectors
        • Support Children’s Sports Safety in Your Community
    • Protect Your Eyes from the Sun
      • How Can UV Rays Damage Your Eyes
      • How to Protect Your Eyes from UV Rays
      • Who’s at Risk for Eye Damage from the Su
      • Choosing UV Protection
      • UV Protection and Eye Safety
      • How to Jump Start a Car Safely
      • Solar Eclipse and Your Eyes
    • Resources for Those with Vision Loss
    • Women’s Eye and Vision Health
      • Pregnancy and Your Vision
    • Fact Sheets to download and print
    • Expert Guest Columns
    • Subscribe to e-news
  • Your Child’s Sight
    • Your Baby’s Developing Sight
    • Getting Your Child Vision-Ready for School
      • Vision Screening Requirements by State
      • Guidelines for Children’s Vision Health
      • Vision Screenings and Eye Exams
    • Your Child’s Glasses
    • Wearing Contact Lenses
    • Signs of Possible Eye Problems in Children
      • Síntomas de posibles problemas con los ojos de los niños
    • Common Children’s Vision Problems
      • Problemas de la vista de los niños
      • Helping Hints for Dealing with Amblyopia (Lazy Eye)
      • Eye Patch Choices
      • Make Patch Time Count
      • Tips for Patch Compliance
    • Protect Your Child from Eye Injuries
    • Home and Toy Eye Safety for Children
    • Safe Toy Checklist
    • Eye Safety for Your Child Athlete
    • Protecting Your Child’s Eyes from the Sun
    • First Aid for Eye Emergencies
    • Fireworks Safety
    • Taking Your Child to the Eye Doctor
    • The ACA and Your Child’s Eye Care
    • Vision Care Financial Assistance
    • Understanding Vision Screenings and Eye Exams
    • Small Steps for Big Vision Tool Kit
    • Fact Sheets to download and print
  • Eye Diseases & Conditions
    • Acanthamoeba Keratitis & Contact Lenses
    • Amblyopia
      • Spanish Language Amblyopia
    • AMD (Age-Related Macular Degeneration)
      • Living With AMD
      • Check Your Vision With an Amsler Grid
    • Astigmatism
    • Cataract
      • Why Do Cataracts Cause Vision Loss
      • Cataract Surgery
      • What Kind of Lens Will Replace My Cataract Lens?
      • Intraocular Lenses
      • Choosing an Eye Surgeon
      • Getting Ready for Surgery
      • Types of Cataract Remova
      • Possible Complications from Surgery
      • Your Recovery
    • Central Retinal Vein Occlusion
    • Color Blindness
    • Conjunctivitis (Pink Eye)
    • Diabetes-Related Macular Edema
    • Diabetes-related Retinopathy
    • Dry Age-related Macular Degeneration (AMD)
    • Eye Inflammation
    • Floaters
    • Glaucoma
      • Types of Glaucoma
      • How Does Glaucoma Damage My Eyes
      • Who is at Risk for Glaucoma
      • How Do Eye Doctors Check for Glaucoma
      • How Do Eye Doctors Treat Glaucoma
      • Treating Glaucoma with Medicines
      • Treating Glaucoma with Laser Surgery
      • Treating Glaucoma with Glaucoma Surgery
      • Living with Glaucoma
      • The Glaucoma Community
      • Taking Eye Drop Medications
    • HIV/AIDS and the Eye
    • Hyperopia (Farsightedness)
    • Inherited Retinal Diseases
      • Retinitis Pigmentosa
      • Choroideremia
      • Stargardt Disease
      • Cone-rod Dystrophy
      • Leber Congenital Amaurosis
    • Keratitis
    • Myopia (Nearsightedness)
    • Presbyopia
    • Refractive Error
      • Astigmatism
      • Hyperopia (Farsightedness)
      • Myopia (Nearsightedness)
      • Presbyopia
    • Retinal Tears & Detachments
    • Strabismus
      • SPANISH LANGUAGE Strabismus
    • Symptomatic Vitreomacular Adhesion
    • Thyroid Eye Disease
    • Uveitis
      • What Causes Uveitis
      • How Do Eye Doctors Check for Uveitis
      • How Do Eye Doctors Treat Uveitis
      • What Causes Vision Loss from Uveitis
      • Living With Uveitis
    • Zika Virus and Your Eyes
    • Fact Sheets to Download, Read and Print
  • Training & Educator Resources
    • Children’s Vision Screening Certification
    • Star Pupils Eye Health and Safety Curriculum
      • K-2 Request form
      • Grades 3-5 Request form
      • Grades 6-8 Request form
    • Eyes That Thrive
    • Small Steps for Big Vision Tool Kit
    • Think of Vision Fact Sheets for Teachers
    • Healthy Eyes Presentation Series – Health Presentation Topics
      • Request Healthy Eyes Presentation
    • Glaucoma Educator Course
    • Adult Vision Screening Certification (3-Year Certification)
    • Eye Health and Safety Fact Sheets for Patients
    • Vision and Eye Health Infographics
    • Diabetes and the Eyes Educational Toolkit
      • Request the Diabetes Toolkit
  • Advocacy
    • Be an Advocate for Vision!
    • Public Policy and Your Sight
    • Congressional Vision Caucus
    • Policy Roadmap
    • Advocacy Initiatives
      • Improving Vision and Eye Health at the CDC
      • Access and Coverage
      • Children’s Vision and Eye Health
      • Vision and Aging Health
      • Population and Public Health
      • Low Vision
    • Coalition Letters and Legislation
      • 2020
      • 2019
      • 2018
      • 2017
    • Eyes on Capitol Hill
    • Position Statements
    • State Vision Screening Requirements
    • Advocacy on Twitter
  • Best Practices and Research
    • Population Health
      • The Center for Vision and Population Health
      • The National Vision and Eye Health Surveillance System
      • The Future of Vision
      • The Cost of Vision Problems
      • Vision Problems in the U.S.
      • State Profiles on Vision and Eye Health
    • Children’s Vision and Eye Health
      • National Center for Children’s Vision and Eye Health
      • Children’s Vision in the U.S. 2nd Edition
      • Considerations for Children’s Vision Screening Programs During the Covid-19 Pandemic
      • 12 Components of a Strong Vision Health System of Care
      • National Association of School Nurses and NCCVEH Vision Tool Kit
      • Vision Screening Device Review
      • Vision Screening Requirements by State
      • Prevent Blindness Model Children’s Vision Legislation
      • Vision Screening Recommendations
        • Children Who Should By-Pass Vision Screening
        • Vision Screener Training and Certification
        • Recognition Visual Acuity (Optotype-based) Screening
        • Occlusion Techniques
        • Instrument-Based Vision Screening
        • Stereoacuity Testing
        • Untestable Children and Rescreening Guidelines
        • Recommended Tools and Tests
        • Components of a Comprehensive Vision Screening System
      • Vision Screening Guidelines by Age
      • Data Collection Guidelines
      • Performance Measures Guidelines
    • Research
normal vision
normal vision
National Glaucoma Awareness Month
Prevent Blindness provides variety of free resources, educational tools to help fight the sneak thief of sight....
Prevent Blindness provides variety of free resources, educational tools to help fight the sneak thief of sight....
Read more
Take a Screen Time Out
Your Eyes Need a Break. Find out more about protecting your eyes while using your digital devices....
Your Eyes Need a Break. Find out more about protecting your eyes while using your digital devices....
Read more
Covid-19 News and Information
Articles to keep you informed about your eyes and vision health during the Covid-19 pandemic...
Articles to keep you informed about your eyes and vision health during the Covid-19 pandemic...
Read more
2020 Joanne Angle Public Health Award
Research Grant Awarded to Angela R. Elam, MD, Kellogg Eye Center, University of Michigan...
Research Grant Awarded to Angela R. Elam, MD, Kellogg Eye Center, University of Michigan...
Read more
The Glaucoma Community
The Glaucoma Community
The Glaucoma Community
A toolkit of useful, personalized features designed to meet the needs of patients and caregivers....
A toolkit of useful, personalized features designed to meet the needs of patients and caregivers....
Read more
Living Well with Low Vision
Living Well with Low Vision
Living Well with Low Vision
A resource for individuals and caregivers....
A resource for individuals and caregivers....
Read More
National Center for Children's Vision and Eye Health:
The Center is designed to promote and ensure a comprehensive, multi-tiered continuum of vision care and eye health for young children....
The Center is designed to promote and ensure a comprehensive, multi-tiered continuum of vision care and eye health for young children....
Read more
Diversity
Diversity
The Center for Vision and Population Health
The Center for Vision and Population Health is a national technical assistance and policy resource for advancing vision and eye health from a population health perspective....
The Center for Vision and Population Health is a national technical assistance and policy resource for advancing vision and eye health from a population health perspective....
Read More
Prevent Blindness
  • Our Affiliates and Partners
    • Prevent Blindness Georgia
    • Prevent Blindness Iowa
    • Prevent Blindness North Carolina
    • Prevent Blindness Ohio
    • Prevent Blindness Texas
    • Prevent Blindness Wisconsin
    • Children’s Vision Massachusetts
    • Illinois Society for the Prevention of Blindness
    • Corporate and Foundation Partners
    • Association Partners
    • Nonprofit Organization Partners
    • Government Partners
  • About Us
    • Our Mission and History
    • Our Impact
    • Board of Directors
    • Scientific Advisory Committee
    • Staff
    • Employment Opportunities
    • Annual Report and Financial Information
    • Award and Grant Programs
      • Bonnie Strickland Champion for Children’s Vision Award
      • Jenny Pomeroy Award for Excellence in Vision and Public Health
      • Joanne Angle Public Health Award
      • Rising Visionary Award
    • National Center for Children’s Vision and Eye Health
    • The Center for Vision and Population Health
    • Prevent Blindness Northeast Region
    • Living Well with Low Vision
    • Diversity, Equity, and Inclusion Policy Statement
  • News & Media
    • News
    • Focus on Eye Health Expert Series
    • Calendar of Observances
    • Eye Health and Safety Infographics
    • Subscribe to E-News
    • Social Media
      • Facebook
      • Twitter
      • Twitter Advocacy
      • Instagram
      • YouTube
  • How You Can Help
    • Individual Giving
    • Memorial Giving
    • Tribute Gift
    • Planned Giving
  • Events
    • All Events
    • Focus on Eye Health National Summit
    • Eyes On Capitol Hill
    • Persons of Vision 2020 Virtual Event
    • Swing fore Sight Golf Tournaments
    • Swing Fore Sight (Vegas)
    • Swing into Spring (Illinois)
  • Contact Us
  • Privacy Policy
  • Copyright Notice
  • Disclaimer Notice
  • Accessibility
  • Your Sight
    • The Eye & How We See
      • A Glossary of Eye and Vision Terms
    • What’s Your Risk of a Vision Problem?
    • Signs of Eye Disease and Vision Problems in Adults
    • Getting Professional Eye Care
      • How Often Should I Have an Eye Exam?
      • Who’s Who in Eye Care?
      • Getting Ready for My Eye Doctor Appointment
      • Getting Refractive Surgery
    • Health Insurance and Your Eyes
    • Medicare Benefits & Your Eyes
      • Welcome to Medicare Physical
      • Routine Eye Exams
      • Cataract Surgery Benefits
      • Glaucoma Medicare Benefits
      • Diabetes
      • Age-related Macular Degeneration
      • Prescription Drug Benefits
    • Vision Care Financial Assistance Information
    • Wearing Contact Lenses
      • Acanthamoeba Keratitis & Contact Lenses
    • 20/20 Vision at 40? – Take Care of Your Eyes!
    • Clinical Trials for Eye Diseases and Vision
    • Common Eye Myths
    • Diabetes and Your Eyes
    • The Glaucoma Community
    • Digital Devices and Your Eyes
      • Blue Light and Your Eyes
    • Taking Eye Drop Medications
    • Growing Older With Good Vision
      • Growing Older, Driving Safely
    • Healthy Living, Healthy Vision
    • Nutrition Supplements and Vision
    • Preventing Eye Injuries
      • First Aid for Eye Emergencies
      • Eye Safety at Home
      • Eye Safety at Work
        • Ten Ways to Prevent Eye Injuries at Work
      • Sports Eye Safety
        • Recommended Sports Eye Protectors
        • Tips for Buying Sports Eye Protectors
        • Support Children’s Sports Safety in Your Community
    • Protect Your Eyes from the Sun
      • How Can UV Rays Damage Your Eyes
      • How to Protect Your Eyes from UV Rays
      • Who’s at Risk for Eye Damage from the Su
      • Choosing UV Protection
      • UV Protection and Eye Safety
      • How to Jump Start a Car Safely
      • Solar Eclipse and Your Eyes
    • Resources for Those with Vision Loss
    • Women’s Eye and Vision Health
      • Pregnancy and Your Vision
    • Fact Sheets to download and print
    • Expert Guest Columns
    • Subscribe to e-news
  • Your Child’s Sight
    • Your Baby’s Developing Sight
    • Getting Your Child Vision-Ready for School
      • Vision Screening Requirements by State
      • Guidelines for Children’s Vision Health
      • Vision Screenings and Eye Exams
    • Your Child’s Glasses
    • Wearing Contact Lenses
    • Signs of Possible Eye Problems in Children
      • Síntomas de posibles problemas con los ojos de los niños
    • Common Children’s Vision Problems
      • Problemas de la vista de los niños
      • Helping Hints for Dealing with Amblyopia (Lazy Eye)
      • Eye Patch Choices
      • Make Patch Time Count
      • Tips for Patch Compliance
    • Protect Your Child from Eye Injuries
    • Home and Toy Eye Safety for Children
    • Safe Toy Checklist
    • Eye Safety for Your Child Athlete
    • Protecting Your Child’s Eyes from the Sun
    • First Aid for Eye Emergencies
    • Fireworks Safety
    • Taking Your Child to the Eye Doctor
    • The ACA and Your Child’s Eye Care
    • Vision Care Financial Assistance
    • Understanding Vision Screenings and Eye Exams
    • Small Steps for Big Vision Tool Kit
    • Fact Sheets to download and print
  • Eye Diseases & Conditions
    • Acanthamoeba Keratitis & Contact Lenses
    • Amblyopia
      • Spanish Language Amblyopia
    • AMD (Age-Related Macular Degeneration)
      • Living With AMD
      • Check Your Vision With an Amsler Grid
    • Astigmatism
    • Cataract
      • Why Do Cataracts Cause Vision Loss
      • Cataract Surgery
      • What Kind of Lens Will Replace My Cataract Lens?
      • Intraocular Lenses
      • Choosing an Eye Surgeon
      • Getting Ready for Surgery
      • Types of Cataract Remova
      • Possible Complications from Surgery
      • Your Recovery
    • Central Retinal Vein Occlusion
    • Color Blindness
    • Conjunctivitis (Pink Eye)
    • Diabetes-Related Macular Edema
    • Diabetes-related Retinopathy
    • Dry Age-related Macular Degeneration (AMD)
    • Eye Inflammation
    • Floaters
    • Glaucoma
      • Types of Glaucoma
      • How Does Glaucoma Damage My Eyes
      • Who is at Risk for Glaucoma
      • How Do Eye Doctors Check for Glaucoma
      • How Do Eye Doctors Treat Glaucoma
      • Treating Glaucoma with Medicines
      • Treating Glaucoma with Laser Surgery
      • Treating Glaucoma with Glaucoma Surgery
      • Living with Glaucoma
      • The Glaucoma Community
      • Taking Eye Drop Medications
    • HIV/AIDS and the Eye
    • Hyperopia (Farsightedness)
    • Inherited Retinal Diseases
      • Retinitis Pigmentosa
      • Choroideremia
      • Stargardt Disease
      • Cone-rod Dystrophy
      • Leber Congenital Amaurosis
    • Keratitis
    • Myopia (Nearsightedness)
    • Presbyopia
    • Refractive Error
      • Astigmatism
      • Hyperopia (Farsightedness)
      • Myopia (Nearsightedness)
      • Presbyopia
    • Retinal Tears & Detachments
    • Strabismus
      • SPANISH LANGUAGE Strabismus
    • Symptomatic Vitreomacular Adhesion
    • Thyroid Eye Disease
    • Uveitis
      • What Causes Uveitis
      • How Do Eye Doctors Check for Uveitis
      • How Do Eye Doctors Treat Uveitis
      • What Causes Vision Loss from Uveitis
      • Living With Uveitis
    • Zika Virus and Your Eyes
    • Fact Sheets to Download, Read and Print
  • Training & Educator Resources
    • Children’s Vision Screening Certification
    • Star Pupils Eye Health and Safety Curriculum
      • K-2 Request form
      • Grades 3-5 Request form
      • Grades 6-8 Request form
    • Eyes That Thrive
    • Small Steps for Big Vision Tool Kit
    • Think of Vision Fact Sheets for Teachers
    • Healthy Eyes Presentation Series – Health Presentation Topics
      • Request Healthy Eyes Presentation
    • Glaucoma Educator Course
    • Adult Vision Screening Certification (3-Year Certification)
    • Eye Health and Safety Fact Sheets for Patients
    • Vision and Eye Health Infographics
    • Diabetes and the Eyes Educational Toolkit
      • Request the Diabetes Toolkit
  • Advocacy
    • Be an Advocate for Vision!
    • Public Policy and Your Sight
    • Congressional Vision Caucus
    • Policy Roadmap
    • Advocacy Initiatives
      • Improving Vision and Eye Health at the CDC
      • Access and Coverage
      • Children’s Vision and Eye Health
      • Vision and Aging Health
      • Population and Public Health
      • Low Vision
    • Coalition Letters and Legislation
      • 2020
      • 2019
      • 2018
      • 2017
    • Eyes on Capitol Hill
    • Position Statements
    • State Vision Screening Requirements
    • Advocacy on Twitter
  • Best Practices and Research
    • Population Health
      • The Center for Vision and Population Health
      • The National Vision and Eye Health Surveillance System
      • The Future of Vision
      • The Cost of Vision Problems
      • Vision Problems in the U.S.
      • State Profiles on Vision and Eye Health
    • Children’s Vision and Eye Health
      • National Center for Children’s Vision and Eye Health
      • Children’s Vision in the U.S. 2nd Edition
      • Considerations for Children’s Vision Screening Programs During the Covid-19 Pandemic
      • 12 Components of a Strong Vision Health System of Care
      • National Association of School Nurses and NCCVEH Vision Tool Kit
      • Vision Screening Device Review
      • Vision Screening Requirements by State
      • Prevent Blindness Model Children’s Vision Legislation
      • Vision Screening Recommendations
        • Children Who Should By-Pass Vision Screening
        • Vision Screener Training and Certification
        • Recognition Visual Acuity (Optotype-based) Screening
        • Occlusion Techniques
        • Instrument-Based Vision Screening
        • Stereoacuity Testing
        • Untestable Children and Rescreening Guidelines
        • Recommended Tools and Tests
        • Components of a Comprehensive Vision Screening System
      • Vision Screening Guidelines by Age
      • Data Collection Guidelines
      • Performance Measures Guidelines
    • Research