Skip to content
Menu
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
Children’s Vision Equity Alliance
Partner Corporations and Organizations
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
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
eNews, November 2024
Subscribe to eNews!
Focus on Eye Health Expert Series
Calendar of Observances
Eye Health and Safety Infographics
Social Media
Facebook
X
Instagram
YouTube
LinkedIn
TikTok
How You Can Help
Make a Gift
Planned Giving
Events
All Events
GivingTuesday
2025 Prevent Blindness Person of Vision Dinner
Art Therapy Program – Fall 2024
Educational Event Calendar
Contact Us
Tell Us About Your Experience
Donate
Menu
All
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Glossary of Terms - U
Common terms to help you learn more about your eyes and vision
Nothing Found
It seems we can’t find what you’re looking for. Perhaps searching can help.
Can we help you find something?
Trending Topics
Financial Assistance
Eye Inflammation
Vision Screening
Observance Calendar
powered by AI
Menu
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
Find an Eye Doctor
Getting Professional Eye Care
What is an Eye Exam?
How Often Should I Have an Eye Exam?
Who Are Eye Doctors?
Getting Ready for My Eye Doctor Appointment
Additional Eyecare Resources
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 and 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
How to Take 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
Preventing Eye Injuries 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
Eye Safety for Hurricane Preparation and Storm Damage Cleanup
How to Jump Start a Car Safely
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 Sun
Choosing UV Protection
UV Protection and Eye Safety
Solar Eclipse Eye Safety
Getting Ready for the Next Solar Eclipse
Solar Eclipse Checklist
Next Solar Eclipse
Solar Eclipse Eye Safety
How to Use Eclipse Glasses
How to Photograph or Record a Solar Eclipse Safely
Resources for Those with Vision Loss
Women’s Eye and Vision Health
Pregnancy and Your Vision
Eye Health and Safety Videos
Fact Sheets to Print and Share
Spanish Language Fact Sheets/Hojas informativas en español
Expert Guest Columns
Subscribe to e-news
Your Child’s Sight
Your Baby’s Developing Sight
Getting Your Child Vision-Ready for School
Children’s 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
Amblyopia (Lazy Eye)
Helping Hints for Dealing with Amblyopia (Lazy Eye)
Make Patch Time Count
Tips for Patch Compliance
Strabismus
Juvenile Diabetes and Vision Health: Help Prevent Vision Loss in Youth
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
Digital Screen Time Tips and Resources
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
Spanish Language Fact Sheets/Hojas informativas en español
Eye Diseases & Conditions
Acanthamoeba Keratitis and Contact Lenses
Amblyopia
Spanish Language Amblyopia
AMD (Age-Related Macular Degeneration)
Living With AMD
Check Your Vision With an Amsler Grid
Astigmatism
Cataract
Cataract Surgery
Central Retinal Vein Occlusion
Cerebral Visual Impairment (CVI)
Coats’ Disease
Coloboma
Color Blindness
Conjunctivitis (Pink Eye)
Diabetes-Related Macular Edema
Diabetic Retinopathy
Dry Age-related Macular Degeneration (AMD)
Dry Eye
Eye Inflammation and Inflammatory Eye Disease
Floaters (Eye Floaters)
Geographic Atrophy (GA)
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
Glaucoma Financial Assistance Information
HIV/AIDS and the Eye
Hyperopia (Farsightedness)
Inherited Retinal Diseases
Retinitis Pigmentosa
Choroideremia
Stargardt Disease
Cone-rod Dystrophy
Leber Congenital Amaurosis
Keratitis
Keratoconus
Macular Telangiectasia (MacTel)
Myopia (Nearsightedness)
Presbyopia
Refractive Error
Astigmatism
Hyperopia (Farsightedness)
Myopia (Nearsightedness)
Presbyopia
Retinal Tears & Detachments
Retinopathy of Prematurity (ROP)
How is Retinopathy of Prematurity (ROP) Diagnosed and Treated?
Retinopathy of Prematurity (ROP) and Your Child’s Lifelong Vision Health
Resources for Families of Children with Retinopathy of Prematurity (ROP)
Stargardt Disease
Living with Stargardt Disease
Strabismus
SPANISH LANGUAGE Strabismus
Symptomatic Vitreomacular Adhesion
Thyroid Eye Disease
Uveitis
What Causes Uveitis?
Vision Loss from Uveitis
Types of Uveitis
Uveitis Symptoms
How do Eye Doctors Check for Uveitis?
Treating Uveitis
Living with Uveitis
Zika Virus and Your Eyes
Fact Sheets to Print & Share
Spanish Language Fact Sheets/Hojas informativas en español
Resources & Support
Art Therapy Program
Caregiver Resources & Support
Eye and Vision Fact Sheets to Share and Print
Eye Health and Safety Videos
The Glaucoma Community
Glaucoma Financial Assistance Information
Hojas informativas
Low Vision Resources & Support
Vision Care Financial Assistance Information
Vision Integration Library: Vision & Eye Health Resource Center at Prevent Blindness
Vision Loss & Mental Wellness
Training & Education
Educational Event Calendar
The Focus on Eye Health Summit
2024 Focus on Eye Health Summit Presentations
2023 Focus on Eye Health Summit
2022 Focus on Eye Health Summit
Focus On Eye Health Summit Presentation Library
Adult Vision Screening Certification (3-Year Certification)
Children’s Vision Screening Certification
Diabetes and the Eyes Educational Toolkit
Eye Health and Safety Fact Sheets for Patients
Eye Health and Safety Videos
Eyes That Thrive
Glaucoma Educator Course
Healthy Eyes Educational Series
Preschool and Early Childhood Solar Eclipse Lesson and Book
Prevent Blindness Presentations and Webinars
Star Pupils Eye Health and Safety Curriculum
K-2 Request form
Grades 3-5 Request form
Grades 6-8 Request form
Small Steps for Big Vision Tool Kit
Think of Vision Fact Sheets for Teachers
Vision and Eye Health Infographics
Educational Resources – Share Your Story
Advocacy & Public Health
ASPECT Patient Engagement Program
ASPECT Stories
Apply to Join the ASPECT Program
Congressional Vision Caucus
Early Detection of Vision Impairments in Children (EDVI) Act of 2024
EDVI Act Legislative Summary and Background
EDVI Act – Children’s Vision in Your State
Ask Congress to Support the EDVI Act
EDVI Act – Advocacy Toolkit
EDVI Act – Social Media Toolkit
Eyes on Capitol Hill Legislative Day
Legislative Action Center
Population Health
Prevalence rates of U.S. vision disorders, vision loss, & blindness
The National Vision and Eye Health Surveillance System
Prevalence of Age-related Macular Degeneration (AMD)
Prevalence of Diabetic Retinopathy
Prevalence of Glaucoma
Prevalence of Visual Acuity Loss or Blindness in the U.S.
The Cost of Vision Problems
The Future of Vision
Integrating Vision Programs
Vision Loss and Mental Wellness
Children’s Vision and Eye Health
National Center for Children’s Vision and Eye Health
The Children’s Vision Health Map – Overview
The Children’s Vision Health Map
Children’s Vision in the U.S. 2nd Edition
12 Components of a Strong Vision Health System of Care
National Association of School Nurses and NCCVEH Vision Tool Kit
Children’s 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
Occlusion Techniques
Stereoacuity Testing
Untestable Children and Rescreening Guidelines
Components of a Comprehensive Vision Screening System
Vision Screening Guidelines by Age
Data Collection Guidelines
Performance Measures Guidelines
Research
Prevent Blindness Research Policy
Menu
Feedback
Tell Us About Your Experience
Let us know more about your visit at preventblindness.org. Your feedback will help us provide a better experience for all our users.
Why did you visit preventblindness.org today?
(Required)
Did you find what you were looking for?
(Required)
Yes
No
What were you looking for specifically?
Do you agree with the following statements? The pages I have read:
are easy to understand.
yes
no
not sure
are up to date.
yes
no
not sure
allow me to take action.
yes
no
not sure
How can we improve your experience on preventblindness.org
With which of the groups do you most strongly identify?
patient
parent/caregiver
student
educator
health care professional
media/journalist
public policy professional
academic/researcher
other
Would you like us to contact you about your feedback?
yes
no
If you answered yes to the previous question, please provide your contact information.
Name
(Required)
First
Last
Email
(Required)
Phone
Subscribe to our enews
I would like to receive eye health and safety news from Prevent Blindness
CAPTCHA
Feedback
Close