Feast your eyes on the iris. Sure, being blessed with a choice eye color is cool. But new research reveals that the eye’s pupil size and iris brightness are the real moneymakers. “Brighter irises and ...

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Scientists have learned that human eye color genetics are far more complex than we knew. Reporting in Science Advances, an international team of researchers has identified over 50 new genes that ...

Brown is the most common eye color worldwide by a large majority. In contrast, green is one of the rarest eye colors worldwide. The color of the eyes depends on how much melanin the eyes contain.

A person’s eye color depends on how much of a pigment called melanin is stored in the front layers of the iris, the structure surrounding the pupil. Specialized cells called melanocytes produce the ...

Heterochromia is the term used to describe a difference in a person’s eye color. Heterochromia of the eye is caused by variations in the concentration and distribution of melanin, the pigment that ...