In fact, 75% of the genetic contribution to eye color comes from this gene, which provides instructions for making the P protein found in cells that produce the pigment melanin (melanocytes).

Exactly how is a person's eye color determined? It depends on the amount, type and distribution of melanin, or pigment, in the iris of the eye, a genetics expert reveals — and more.

Gene Tierney in 1945 Silver Screen Collection/Getty Tierney was known for her striking eye color and intense gaze, and in this shot, the green ribbon on her hat perfectly complemented her eyes.

The eye-color gene. Just as the MC1R gene determines your hair color, a single gene, OCA2, is 75% responsible for your eye color, Dr. Kaplan says.

Wong says "hazel eyes are thought to be the most complex and varied eye color," in another Instagram video post shared in December. This is down to their color being a mix of gold, brown and green.

How much of each melanin type is expressed, and in what balance, determines whether someone will have, for example, jet-black hair or fiery-red locks, and the same goes for skin tone and eye color ...

But, unlike simple inheritance patterns, eye color isn’t determined by a single gene. Multiple genetic markers contribute to the final shade, making it not always easy to predict the final outcome.

Your baby’s eye color may start to change during their first year, but it may not be totally set for a few years. ‌ Research has found that most children’s eyes will stop changing color when ...

A gene therapy delivered through eyedrops is allowing him to see again and has opened the door to similar therapies that could potentially treat millions of people with other eye diseases.

Scientists have identified a gene responsible for some inherited retinal diseases (IRDs), which are a group of disorders that damage the eye's light-sensing retina and threatens vision.

Although brown eye color is thought to be dominant to blue, Stevens emphasized that we have two copies of each gene — one from each parent — and multiple genes are involved in determining eye ...