Our ability to see with color vision depends on the presence and function of light-sensing pigments in the cones of our eyes. Color blindness, or color vision deficiency, happens when one or more of ...

Color vision may actually work like a colorized version of a black-and-white movie, a new study suggests. Cone cells, which sense red, green or blue light, detect white more often than colors, ...

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 ...

New research reveals signs of highly sensitive color vision in fish that live in the abyss beyond sunlight's reach An international team of researchers discovered a previously unknown visual system ...

The light-sensitive elements, called photosites, create an electrical signal proportional to the amount of light striking that element. All photosites on the imager chip eventually get linked to ...

Abnormal color vision increases significantly with aging -— affecting one-half or more of people in the oldest age groups, reports a study. While few people younger than 70 have problems with color ...