Petrana Radulovic is an entertainment reporter specializing in animation, fandom culture, theme parks, Disney, and young adult fantasy franchises. Blue Eye Samurai’s Mizu, the mixed-race ...

Blue eyes have small amounts of melanin while brown eyes are rich in melanin. Iris color may not stay constant throughout a person’s life. For example, many babies are born with blue eyes that ...

People with heterochromia—or different-colored eyes—have a striking and unique appearance. Here's what causes it and just how rare it is.

Humans have three types of light-sensing cones in the eyes: red, blue, and green. With color blindness, also known as color vision deficiency, the pigments in these cones may be dysfunctional or ...