There are three main forms, each offering a fascinating variation in color. Complete heterochromia: Each eye has a completely different color. Imagine a green eye and a hazel eye, or a blue eye ...

Discover how the genetics behind your eye color connects to various health conditions, from melanoma risk to pain ...

See, we like to think there’s a rainbow of eye color options out there—violet, blue, gray, hazel, green, brown, near-black—but scientists believe that they’re all slightly different ...