![]() ![]() Those wavelengths are blue, so that is how we perceive these irises. But when eyes have little melanin, the light scatters and only the longest wavelengths reflect back. ![]() When eyes have lots of melanin in them, most of the light is absorbed and the brown wavelengths reflect back. ![]() When light hits the multitude of fibers within the iris, it is either absorbed or scattered. Blue eyes only appear blue because of an optical illusion caused by light scattering. There is no blue pigment anywhere in the human body. The truth is, blue eyes are not really blue at all. Lower concentrations of melanin in the skin and hair result in very pale wheat-like coloring, which we call blonde hair and fair skin. If the color blue has you wondering why the lowest amounts of melanin don’t result in very light brown or tan-colored irises, you are onto something. The spectrum begins at blue and progresses through green, hazel, brown, and finally black. Depending upon the exact amount of pigment present, eyes appear in a range of colors. Higher concentrations of melanin on the front layer (called the stroma) result in dark brown to black irises, while lower concentrations result in light blue irises. The irises of our eyes contain back and front layers that are colored by the pigment melanin, which appears in shades of brown and determines the color of the eye. The so-called “paint” that colors all living things is called pigment. Your emotional state can also influence the iris, it decreases in size to make the pupil larger when you are surprised, or if you are concentrating on a difficult task. The iris decreases in size and opens up the pupil so more light can enter the eye for improved vision. The iris enlarges when the surrounding area is very bright, to reduce pupil size and protect the eye by preventing too much light from entering. The iris exists to regulate the amount of light that enters the eye, and the muscle fibers are what allow it to do this, by changing its size. It is a ring around the black pupil, a hole at the eye’s center, and is made up of many small muscle fibers, which you can see if you take a close look. You can see through the cornea to the iris and the pupil. The outer layer of the eye includes the white of the eye, or the sclera, and the cornea, a clear dome at the front of the eye. While a child’s eye color can often be predicted by the eye colors of his or her parents and other relatives, genetic variations sometimes produce unexpected results.” What Is Eye Color? Related: What Color Will My Baby’s Eyes Be? ![]() According to Genetics Home Reference, “The inheritance of eye color is more complex than originally suspected because multiple genes are involved. Some babies won’t settle into a final eye color until closer to age two.Įye color genes are more complicated than what appears to the eye. This is because of the pigmentation process, which continues to develop after a baby is born.Ĭaucasian babies are generally born with blue eyes, but much of the time, their eyes darken to green, hazel, or brown by age one. Will your baby’s blue eyes stay that way? It’s possible, but not guaranteed.īabies born with light-colored eyes may end up with a different eye color later on. ![]()
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