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 ...

Testing for acquired color vision deficiencies is underutilized throughout optometry, practitioners say, despite the fact that it can provide valuable diagnostic information. Cone function loss may be ...

You may have seen them at your ophthalmologist's office: large circular diagrams made up of colored dots. People with normal vision are able to discern a number among the dots of contrasting colors.

Waggoner CCVT accepted by FAA for use by Aviation Medical Examiners for medical clearance of pilots and air traffic controller specialists. We are proud to have the FAA accept our Waggoner CCVT as an ...

Do you have superior vision, or are you colour blind? A new test, created by Playbuzz, will determine how adept you are are seeing different shades using a clever optical illusion. Article continues ...