An August 2016 Stanford University study published in Acta Ophthalmologica found that "the birth prevalence of iris color was ...

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 ...

B rown and hazel eyes get their color from melanin, the same pigment that colors your skin. The more melanin in the eye, the darker your eye color will appear. But blue eyes don't have any blue ...