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.

The colored part of the eye surrounding the pupil is called the iris. It automatically regulates the amount of light entering the eyes by regulating the size of the pupil. Light is the primary ...

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 ...

"Why are eyes different colors?" asked a young patron at the Arlington Heights Memorial Library. The colored part of the eye is the iris, but whether it is brown, gray, hazel, or blue, eye color is ...

To investigate the influence of seasonal light intensity and patients’ iris color on the visual recovery after anti-vascular endothelial growth factor (VEGF) therapy with ranibizumab or bevacizumab ...

Whenever I indulge in guacamole made from a Hass avocado, I am reminded of its unlikely origin. In 1926, Rudolph Hass, a mail carrier in Pasadena, planted three avocado seeds in his avocado grove in ...