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 ...

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.

Are you color blind? Maybe you are, maybe you aren’t—but have you ever put that question to an actual test? You can, and it’s very simple. What does it do? Tests your color vision. If you ...

A: There is no training required for passing any type of color blindness test. The tests involve detecting the innate ability of the eyes to identify and discriminate colors.

VideoA 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 ...

A new tool for monitoring #COVID19 may one day be right under your nose: color-changing test strips that can be stuck on masks and used to detect SARS-CoV-2 in a person’s breath or saliva.

Increase your screen’s brightness, put on your glasses, and join this vision challenge! 👀 The post Only 18% Can Get A ...

People who are color blind might see only a field of spots. These elegant, deceptively modern drawings were published 100 years ago by a Japanese ophthalmologist, Shinobu Ishihara.

Researchers are developing this color-changing test strip, that can be stuck on a mask and used to detect SARS-CoV-2 in a user’s breath or saliva. (Courtesy UCSD) () ...

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.