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  • Conditions
      Conditions
    • Coronavirus
      Coronavirus
        Featured
      • Coronavirus and your eyes
      • Are red eyes a coronavirus symptom?
      • Can coronavirus (or a cold or the flu) cause pink eye?
      • Face masks don't cover eyes
      • COVID-19 eye transmission
      • Contacts or glasses for safety?
    • Eye Conditions, A-Z
      Eye Conditions, A-Z
        Featured
      • Blurry Vision
      • Conjunctivitis
      • Corneal Abrasions
      • Dry Eyes
      • Eye Discharge
      • Eye Pain
      • Read articles about Coronavirus eye health updates Read articles about Coronavirus eye health updates
    • More Eye Conditions
      More Eye Conditions
        Featured
      • Eye Twitching
      • Ocular Migraines
      • Red Eyes
      • Eye Styes
      • Swollen Eyelids
      • How to Get Rid of a Stye
      • Read articles about Coronavirus eye health updates Read articles about Coronavirus eye health updates
    • Refractive Errors
      Refractive Errors
        Featured
      • Myopia (nearsightedness)
      • Astigmatism
      • Contrast sensitivity testing
      • Visual Acuity: 20/20 Vision
      • Hyperopia (farsightedness)
      • Read articles about Coronavirus eye health updates Read articles about Coronavirus eye health updates
    • Digital Eye Strain
      Digital Eye Strain
        Featured
      • Digital Eye Strain
      • Computer Glasses
      • Kids & Screen Time
      • Blue Light and Vision
      • Blue Light Glasses
      • Read articles about Coronavirus eye health updates Read articles about Coronavirus eye health updates
  • Glasses
      Glasses
    • Eyeglass Lenses
      Eyeglass Lenses
        Featured
      • How to Choose Eyeglass Lenses
      • Anti-reflective Lenses
      • Progressive Lenses
      • Eyeglass Lens Coatings
      • Photochromic Lenses
      • Multi-focal Lenses
    • Glasses Frames
      Glasses Frames
        Featured
      • Eyeglass Frame Materials
      • How to Clean Your Glasses
      • Top FAQs
      • What do the numbers on your eyeglass frames mean?
      • Eyeglass temples: How do you know if they're the right length?
      • Can you be allergic to eyeglasses?
    • Facial Fit
      Facial Fit
        Featured
      • The Best Glasses for Your Face Shape
      • Pupillary Distance
      • Glasses for Round Faces
      • Glasses for Small Faces
      • Glasses for Long Faces
      • Sunglasses for Oval Faces
    • Buying Glasses
      Buying Glasses
        Featured
      • How Much Do Glasses Cost?
      • Cheap Glasses
      • Choosing Eyeglasses
      • Best Places to Buy Glasses
      • How to Solve Problems with New Glasses
      • Styles: Trends in Men's Glasses
  • Sunglasses
      Sunglasses
    • Sunglasses Types
      Sunglasses Types
        Featured
      • Polarized Lenses
      • Prescription Sunglasses Guide
      • Ray-Ban Wayfarer Guide
      • Performance Sunglasses
    • Buying Sunglasses
      Buying Sunglasses
        Featured
      • Are Designer Shades Worth It?
      • How to Spot Fake Wayfarer Sunglasses
      • Guide to High-Quality Sunglasses
      • Tint Guide for Sports Sunglasses
      • UV Radiation and Your Eyes
  • Contact Lenses
      Contact Lenses
    • Soft Contacts
      Soft Contacts
        Featured
      • Contact Lens Basics
      • Reading a Contact Lens Prescription
      • Soft Contact Lens Care
      • Daily Disposable Contacts
      • Buying Contacts Without a Prescription?
    • Other Contacts
      Other Contacts
        Featured
      • Bifocal Contacts
      • Toric Contact Lenses
      • Colored Contacts
      • Multifocal Contacts
      • Gas Permeable Contact Lenses
      • Scleral GP Contact Lenses
  • Vision Insurance
      Vision Insurance
    • Benefits
      Benefits
        Featured
      • What is vision insurance?
      • How to Use Vision Insurance Benefits
      • Check Your Vision Insurance Benefits
      • EyeMed Vision Insurance
      • VSP Vision Insurance
    • Networks & Plans
      Networks & Plans
        Featured
      • Vision Insurance or Vision Benefits Plan
      • Vision Insurance Provider List
      • Provider Networks and Vision Insurance
      • What is Covered by Vision Insurance?
    • Medicare/Medicaid
      Medicare/Medicaid
        Featured
      • Medicare & Medicaid Vision Benefits
      • Medicare Advantage Plans (Part C Plans)
      • Medicaid: Eligibility and Vision Benefits
      • How to Get Free Eye Exams and Glasses
    • FSAs and HSAs
      FSAs and HSAs
        Featured
      • What can I spend FSA dollars on?
      • Why should I spend my FSA on vision?
      • What’s the difference between an HSA and FSA?
      • What happens to FSA dollars at the end of the year?
      • How do I enroll in an FSA?
      • How do I redeem my FSA dollars?
  • Vision Surgery
      Vision Surgery
    • LASIK
      LASIK
        Featured
      • LASIK Eye Surgery Guide
      • Cost of LASIK
      • LASIK Risks
      • Top FAQs
      • How Long Does LASIK Last?
      • Does LASIK Hurt?
      • Do I Have To Be Awake During LASIK?
    • Other Laser Surgery
      Other Laser Surgery
        Featured
      • PRK Surgery
      • SMILE Laser Surgery
      • Epi-LASIK Surgery
      • Lens Replacement Surgery
      • LASEK Eye Surgery
      • PresbyLASIK
    • Cataract Surgery
      Cataract Surgery
        Featured
      • Cataract Surgery
      • Laser Cataract Surgery
      • Cataract Surgery Video
      • Cataract Surgery Recovery
      • Cataract Surgery Complications
      • Cataract Surgery Cost
  • Eye Care
      Eye Care
    • Eye Exams
      Eye Exams
        Featured
      • What to Expect During Eye Exams
      • Free Eye Exams
      • What is an Eye Test?
      • How to Read Your Eyeglass Prescription
      • How to Choose an Eye Doctor
    • Vision and age
      Vision and age
        Featured
      • Infant vision development
      • Are contact lenses a good choice for kids?
      • Reading glasses: Tips before you buy
      • How older drivers can improve their driving at night
    • Eye Nutrition
      Eye Nutrition
        Featured
      • Lutein & Zeaxanthin
      • Eye Vitamins and Supplements
      • Omega-3 Fatty Acids
    • Eye Safety
      Eye Safety
        Featured
      • Safety Glasses
      • Sports Glasses & Goggles
      • Eye Safety: Q&A
    • Sports Vision
      Sports Vision
        Featured
      • Contact Lenses for Sports
      • Shooting Glasses and Hunting Eyewear
      • Ski Goggles
    • Vision Resources
      Vision Resources
        Featured
      • Eye Diagram
      • Baby's Eye Colors
      • Dominant Eye Test
      • Color Blindness
      • Color Blind Tests
HomeEye CareVision Resources

Vision Resources

How does the eye see? What are refractive errors? What is color blindness? How do you know if you are at risk of age-related macular degeneration? Find answers to these questions and more.

All Vision Resources Articles

Eye anatomy: A closer look at the parts of the eye

More Articles

Eye color: How it develops and why it changes

How smoking harms your eyes

Checklist for better vision and eye health

Dominant eye test: How to find your dominant eye

Heterochromia: 2 different-colored eyes

Anisocoria: What causes unequal pupil sizes?

How to fix the red eye effect in photos

Resources for the visually impaired

How to put in eye drops

Where can I donate my old glasses?

"A Christmas Tale" Children's Book Benefits Glaucoma Research

Solar eclipse and your eyes: How to view an eclipse safely

World Sight Day: How you can give the gift of vision

Green eyes: The most attractive eye color?

Blue eyes: Is everyone with blue eyes related?

Brown eyes: All about brown eye color

Hazel eyes: What causes hazel eye color?

Amsler grid: Macular degeneration test (screening)

Ways on how to improve vision

How to whiten your eyes

Will wearing glasses make your vision worse?

How to avoid germs on your glasses (and don’t share your eyewear)

When were eyeglasses invented and by whom?

Why people wear glasses may surprise you

Halloween costumes with glasses

12 holiday gift ideas for eyeglass wearers

How eyeglasses work and a history of glasses

5 healthy vision tips for young adults

Infographic: How eyeglasses work and a history of glasses

At long last, a typeface designed specifically for low-vision readers

Latest technology to help people with low vision

Eyecare News and the Latest New Vision Care Products - AllAboutVision.com

5 home activities for kids

Eye drops recall at Walmart, CVS, Walgreens

What is eagle eye vision?

All About Vision: Test your Eye-Q

Why do people roll their eyes?

Love at first sight … is it real?

Macula lutea

How does the brain control eyesight?

Is social media making eye contact a rarity?

Why do people wink?

The invention of sunglasses

The history of sunglasses: From Foster Grants to today

How to fix scratched sunglasses

Top trending sunglasses on Instagram

Finding Your Dominant Eye Video

Video: How to put in eye drops

Refractive errors and refraction: How the eye sees

Color Blindness: Types, Causes, Symptoms, Treatment

Color blind tests: Do you see colors as they really are?

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