Ishihara color test. This checks for red-green color blindness. The doctor will ask you to look at a series of circles (also called plates) with dots of different colors and sizes.

Red-green color blindness is broadly organized into four types, protanomaly, protanopia, deuteranomaly, and deuteranopia, all of which have to do with how the cones in the eye function.

After checking one eye, you’ll cover the other eye and look at the test cards again. The doctor may ask you to describe a particular color’s intensity as perceived by one eye versus the other.

Deuteranopia refers to red-green color blindness. This is the most common type of color vision deficiency, which is usually genetic. ... They may also test one eye at a time.

There are various other tests to detect color vision like D-15 test, lantern test and holmgreen wool test. Published on Apr 16, 2013 Last Updated on Apr 19, 2013 ...

Red-green color blindness can be diagnosed with a simple eye test. Optometrists (eye doctors) often check children for color blindness as part of a routine vision screening.

Online color blindness tests may give people an idea of whether they may be color blind and if so, which type of color blindness they might have. This information comes from the National Eye ...

A confession: I am color blind. It's not that I can't see any colors—I had actually lived most of my life without being a bit aware of my condition—but when I'm presented with one of those ...