Wong told Newsweek: "In addition, what gives blue and green eyes their color is not actually blue or green pigment but the ...

Also called photophobia, light sensitivity is more common in green, blue, and light grey eyes because these irises lack the ...

The biggest stories of the day delivered to your inbox.

In humans, phenotypically, eye color falls into one of these basic categories -brown, blue or green. Brown eyes are the most common (due to their dominant nature), followed by blue and then green.

people with darker eye colors, like brown or black, may have a higher tolerance for risk-taking, while those with lighter ...