Color blindness can make it difficult for Windows PC users since they might not be able to differentiate colors. These computer software for the Color Blind can help.

University of Cincinnati biologists are using this compulsion to test the crabs' color vision using simple modified electronics. Most people can detect a huge variety of colors -- more than 1 million.

Fewer than 20 color nuances: You are a dichromat, like a dog, and have only two types of cones. Derval said you are likely to wear black, beige and blue (25% of the population).

The software update even provides users with color recognition, even though the original version of the device only provides black and white vision. The Argus II, to give its proper classification ...