Did you know some people have red eyes? How about violet? We spoke to an optometrist to learn how rare some eye colors are and how eye color is determined.

Green irises (the rarest eye color) have less melanin than brown eyes but more than blue eyes, for instance. “Brown is on one end, blue on the other, and hazel and green are in between,” Dr ...

Discover the rarest eye colour in the world—red or violet—found in less than 1 in 50,000 people due to ocular albinism.

While your eyes bring the world your way, the origins of eye color are fascinating and even mysterious. ... Amber. This shade is described as copper, gold or very light brown.

Rounding things out are blue eyes, the second-most-common eye color, at 8% to 10% (or roughly 800 million people); hazel eyes and amber eyes at 5% (or 400 million people) each; gray eyes at 3% (or ...

When your cat's or dog's eye color changes, it's a pretty fascinating thing. The SF SPCA's Dr. Jennifer Scarlett says sometimes it's normal with age, but other times it can be due to congenital ...