Advances in cosmetic surgery let people permanently change their eye color, and they’ll pay thousands for a new hue. Doctors ...

The eyes are truly the windows to the soul. Look into the eyes of someone you know and you can tell what they feel, what they ...

When colored contacts aren't enough, some people are paying thousands of dollars to have their eye color surgically changed.

but scientists do know that eye color began to change long before recorded history began. The following is a transcript of the video. All blue-eyed people have one ancestor in common, born around ...

Animals see differently than humans. Cats can navigate low-light environments, but what about their perception of color?

This Color vision testing is based on the Ishihara Test for color blindness. Color blindness is a condition where people find it difficult to distinguish between certain colors. This color blindness ...