Can I Test My Vision Online?

Test your eyesight without a trip to the eye doctor? Online vision tests aim to make it possible. Several companies offer tests that you can take on the internet with your computer or smartphone.

An online vision test might check:

  • How sharp your vision is
  • If you have astigmatism, a condition that can make things blurry or stretched
  • How sensitive your eyes are to light
  • If you have color-blindness, meaning you can’t see colors correctly

These eye tests can be helpful in some situations, like if you break or lose your glasses when you’re far from home and you need a prescription to get new ones.

But they can’t replace regular visits to your eye doctor. That’s because they are only about vision -- they don’t check the health of your eyes. They can’t tell you if you have a condition that can threaten your sight, like cataracts, glaucoma, or macular degeneration. If you think you have an infection or you’ve injured your eyes, you should see an eye doctor.

Who Can Take Online Vision Tests?

Online vision tests are meant for healthy adults ages 18 to 39 who:

Even if you are the right age and healthy enough to take an online vision test, you should still get regular eye exams as often as your eye doctor recommends.

How Online Vision Tests Work

An online vision test can have a few steps. You’ll need a computer and some space to sit back so you can take the part of the test that checks your distance vision. Some tests also need you to have a smartphone so you can use an app. If you have prescription eyeglasses or contacts, chances are you’ll need to wear them for the test.

Some websites offer tests just to check your vision. If you get results that say you might have a problem, it will be up to you to see an eye doctor. Other websites offer prescriptions for glasses and contacts based on the results of your tests. An eye doctor in your state will check over your results and email you a prescription. Then you can order glasses or contacts online. Not every state will allow you to get an eye prescription this way.

The websites that offer prescriptions will charge a fee. Chances are your vision or health insurance won’t cover it. It might be cheaper for you to use your insurance to see an eye doctor. Check your plan to see what it covers.

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Are Online Vision Tests Accurate?

Doctors disagree about whether online vision tests are accurate. And because they are still new, researchers haven’t studied them well enough to know for sure how they compare to an exam you’d get from your eye doctor.

One thing to keep in mind is that if you don’t take the test correctly, you might not get an accurate result. Plus, the tests are not designed for people who need a strong prescription for eyeglasses.

The bottom line: Before you take an online vision test, make sure you understand what it can and can’t tell you. And keep your regular appointments with your eye doctor to make sure you’re healthy.

WebMD Medical Reference Reviewed by Alan Kozarsky, MD on June 02, 2019

Sources

SOURCES:

Allaboutvision.com: “Why An Online Eye Test Can’t Replace Your Eye Doctor.”

Essilor.com: “Test Your Vision.”

National Eye Institute: “Facts About Astigmatism.”

American Academy of Ophthalmology: “Getting A Glasses Prescription Online: What You Should Know.”

Opternative.com: “Eligibility Details.”

American Optometric Association: “Online Eye Tests.”

USC Roski Eye Institute: “How Reliable Are Online Eye Exams?”

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