Biologists say a genetic quirk on the X chromosome may give some women a fourth color channel — but does that really mean 100 ...

There are three main types of color vision deficiency: red-green, blue-yellow, and complete. Color blindness, or color vision deficiency, affects the way you perceive color and can make it hard to ...

Colour vision deficiency encompasses a spectrum of inherited or acquired impairments that reduce the ability to distinguish between specific hues under normal lighting. Congenital forms arise from ...

The Ishihara Color Test is a widely used screening tool for color vision deficiency, especially red-green color blindness. It is striking how easily this difference can go unnoticed. A child learns ...

Recently, my Ohio State University Extension colleague Katie Schlagheck shared her family’s journey with color blindness in an article for the OSU Extension Live Healthy Live Well Blog at ...

Diseases that affect the retina, the light-sensitive layer at the back of the eye, are a significant cause of visual impairment and blindness. Gene therapy holds promise for treating some of these ...