![]() ![]() To understand how eyes get their color, you must first understand the role of the iris – the muscle structure that surrounds the pupil (the black part of the eye) and controls how much light enters the eye. ![]() “These differences give rise to the wide range of beautiful eye colors observed.” How do Eyes Get Their Color? “Between humans, the relative number of melanocytes is similar however, how much melanin is created, as well as the number of melanosomes, differs from person to person,” Dr. The pigment is stored in special vessels called melanosomes. This pigment is created by special cells called melanocytes. “Most of these codes related to eye color are linked to the production, transport, and storage of a pigment called melanin.” ![]() “Eye color is determined by an individual’s genetics inherited genes which are the codes that influence the expression of traits such as our skin color, hair, and eye color,” Dr. Both of these genes are located on chromosome 15, one of the 23 pairs of chromosomes found in humans. Scientists believe as many as 16 genes help make up eye color, although two major genes – HERC2 and OCA2 – play the largest determining factor. In the distant past, no two individuals have the same exact eye color thanks to genetics. Zepeda, MD, a clinical assistant professor and pediatric ophthalmologist at the Dean McGee Eye Institute/University of Oklahoma Department of Ophthalmology, to provide more information on what determines eye color and when your baby’s eyes will begin to change colors. When looking into your child’s eyes, the eye color you see as a newborn or infant may not be the same eye color they end up with as a toddler.īut how do you know when – or if – those baby blue or gray eyes will turn into a different shade? We spoke with Emily M. After all, mutual gazing is one of the earliest forms of communication you can have with them.
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