Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot like individual fingerprints, making our eyes two of the most distinctive parts ...

Medically reviewed by Johnstone M. Kim, MD Of the four main eye colors (brown, blue, green, and hazel), the rarest eye color ...

Ever wondered what the most common eye colors are? Well, they might not be exactly what you expected them to be.