Medically reviewed by Andrew Greenberg, MD Eye color genetics is complex, with multiple genes from each parent determining a ...

Hazel eyes can change colors based on the lighting ... notes a June 2007 study in the Journal of Human Genetics. "A small ...

Brown eyes are rich in melanin, which not only gives them their color but also provides natural UV protection. Hazel eyes are a mix of brown, gold, green, and sometimes even gray. Depending on the ...