Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye's iris [1] [2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris.

2024年3月11日 · Your eye color is one of the things that makes you unique from everyone else on this planet. It can change throughout your lifetime and offer clues to your history and heritage. Understanding how it works can sometimes be a clue to medical conditions or concerns.

Brown is the most common eye color. Individuals with brown eyes have more melanin present, and over half of the people in the world have brown eyes. Gray eyes may be called “blue” at first glance, but they tend to have flecks of gold and brown.

2019年7月27日 · While there is a limitless number of hues, shades, richness, and combinations of colors that make up your eye color, most people agree about how many eye colors there are in general. And that number is six: brown, hazel, blue, green, gray, and amber.

2022年8月14日 · This article explains why brown is the most common eye color and how certain eye colors are more common in different groups of people. It also discusses the biological and genetic factors behind eye color.

2023年9月29日 · Eye color is determined by a complex interaction of genes. Find out everything you need to know about eye color, common and rare types, and more here.

2023年8月30日 · Most people have brown, blue, or hazel eyes, but there are other eye colors too. While some mild health benefits and detriments have been linked to eye color, more research is needed. Overall, it is likely that eye color usually has minimal impact on a person’s health.

Learn the genetics and fascinating facts of eye color. Discover how different eye colors occur and brush up on your genetics knowledge.

2025年3月12日 · Eye colour, heritable phenotypic (observable) trait determined by pigmentation and light scattering in the iris of the eye. The iris, the coloured part of the eye, is the ring of muscle and collagen fibres around the central black opening of …

2019年2月26日 · Eye color depends on how much melanin is in the iris and how it's distributed. Blue eyes contain much less melanin than brown eyes. Different levels of the pigment create the appearance of blue, brown, and everything in between. This isn't decided by a single gene.