An August 2016 Stanford University study published in Acta Ophthalmologica found that "the birth prevalence of iris color was 63 percent brown, 20.8 percent blue, 5.7 percent green/hazel." ...

Q: I know green eyes are the rarest eye color. I am all-Sicilian and I, as well as my dad’s mom, have them. What countries have the most green-eyed people? My cousin did some research and found ...

The non-red version is dominant. Gey, which is one of the genes that determines eye color, comes in two forms: Green and blue. Blue is the dominant allele. But that doesn’t tell the whole story.

In fact, the human eye sees green better than any color in the spectrum. This, along with many other facts about this earthly color, makes it an essential part of our everyday lives.

Deuteranomaly: It’s the most common form of color blindness and affects 5% of males, but is rare in females. It happens when the green cone photopigment doesn’t work as it should.

Eye color is determined by different versions of genes that control how melanin, pheomelanin, and eumelanin are made and spread in the iris. The two main genes responsible for eye color are OCA2 ...

Protan color blindness is a type of vision deficiency where it's hard to tell the difference between red and green. Learn about how this condition is diagnosed and managed.