11/30/2023 0 Comments Coolest eye colors![]() Sometimes babies (most commonly caucasian babies) are born with blue or gray eyes that change to a different color over time. ![]() Why Do Babies Often Start With Blue Eyes? Blue-eyed parents won’t necessarily produce blue-eyed children every single time. This means that you can’t always predict a child’s eye color based on how their parents’ eyes look. Tiny changes to any of those genes can lead to a different color. In recent years, scientists have found that eye color isn’t only controlled by a single gene but by as many as 16 genes working in tandem. Very rare red and “violet” eyes (typical in albinism, as pictured above) come from a total lack of melanin in all layers of the iris, so the color is a combination of Tyndall scattering and the blood vessels being more visible. Eyes are hazel when they have just enough melanin to obscure any Tyndall scattering. There isn’t any actual blue pigment present, but like the sky and the ocean, blue irises get their color from the way the light scatters around the iris, called Tyndall scattering.Įyes can be green if there is some melanin present but not enough to completely obscure all of the Tyndall scattering, so there’s a bit of blue appearance mixing with yellowish pigment. But what about blue eyes? Blue eyes are basically the absence of melanin. Melanin in the iris comes in two different types: eumelanin (which produces a deep chocolate brown color) and pheomelanin (which produces colors ranging between amber, green, and hazel). Heterochromia (partly or completely different-colored eyes): 1%.These are the percentages of different eye colors in the population: Brown eyes in varying shades are by far the most common, while blue eyes likely all trace back to a single common ancestor with a specific mutation. How Rare Are Different Eye Colors?Īnyone living in an English-speaking country might have the impression that eye colors like blue, hazel, and brown are about equally distributed across the population, but if you look at the whole planet, the ratios are very different. ![]() Melanin helps to protect the eye by absorbing light (including some UV light) that hits the iris, which is the part of the eye that controls the amount of light that reaches the retina. Melanin, the same compound that determines skin and hair color, is also responsible for why we have different eye colors. ![]()
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