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

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 ...

Genetics aren't necessarily destiny for those with mutations thought to always cause inherited blindness, a new study says. Fewer than 30% of people with these genetic variants wind up blind, even ...

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 ...