All eye color has to do with the amount of melanin in the iris – the colored part of the eye. Melanin is a protein that ...

As it happens, those characters also tend to have very memorable stories as well as unique personalities, which makes them so ...

Indian yellow This soft-yet-vivid yellow is considered a rare color because of its exceptionally bizarre origin. Used by artists including Van Gogh, Indian yellow is said to have come from the ...

Laser keratopigmentation (also called corneal tattooing) adds color to the clear outer layer of the eye, the cornea, to mask the iris beneath. A precise laser creates tunnels in the cornea where ...