A color vision test, also known as the Ishihara color test, measures your ability to tell the difference among colors. If you don’t pass this test, you may have poor color vision, or your doctor may ...

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.

A refraction test is usually given as part of a routine eye examination. It may also be called a vision test. This test tells your eye doctor exactly what prescription you need in your glasses or ...

There are dozens of inexpensive ways to buy glasses online today, but getting a new eyeglass prescription is as old-school as ever: Book an appointment with your eye doctor, spend more time than you ...

Editor’s Note: The United States Food and Drug Administration issued a warning letter to online vision test company Opternative in October, 2017, requesting that the company cease activities that ...