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.

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.

2024年3月11日 · Your eye color refers to the color of each eye’s iris, a double-layered ring of muscle tissue around your pupil that controls how much light enters your eyes. The color of your iris depends on a few different factors between it and other parts of your eye .

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.

瞳色[2][3][註 1] （iris color [4]）又稱 眼色[5] （eye color [6]），是指 虹膜 的色彩，因虹膜表层 色素沉淀 差别而形成的角膜颜色差異。 瞳色的色澤由虹膜中黑色素的量、种类（真黑色素 與 假黑色素 [7]）和分布决定 [8][7]，从浅蓝色过渡到深棕色，是一種 多基因遺傳 特徵。 人類與其他動物的眼珠顏色，擁有許多 表型 變異 [9]。 許多鳥類擁有鮮明的眼珠顏色，這些顏色取決於其他的色素，如 蝶酸 、 嘌呤 與 類胡蘿蔔素 [10]。 虹膜的顏色受三種主要原因影響，分別是黑色素在虹 …

2019年3月3日 · There is only one pigment that determines eye color: It's called melanin. The color of your eyes depends on how much melanin there is in your iris. If you have a lot of melanin, you'll have brown eyes (or some other dark eye color). If you have less melanin in the iris, you'll have a lighter eye color.

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.

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.