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 ...

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.

More than 50% of people worldwide have brown eyes, making brown the most common eye color. Some medical conditions can also affect eye color. Share on Pinterest ohlamour studio/Stocksy United The ...