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Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris.
Sep 29, 2023 · Human eyes come in a dazzling array of colors, ranging from deep brown to bright green. Some colors are more common than others, and some are somewhat rare and unusual. Brown Eyes. People with brown eyes have a large amount of melanin within both the back and front of the iris.
Apr 25, 2024 · 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 the eye known as the pupil, through which light passes.
Oct 17, 2017 · Eye color is determined by the pattern of brown and red pigment, collagen fibers, and the topography of the iris. The colored area at the front of the eye is called the iris. It...
Human eye, specialized sense organ in humans that is capable of receiving visual images, which are relayed to the brain. The anatomy of the eye includes auxiliary structures, such as the bony eye socket and extraocular muscles, as well as the structures of the eye itself, such as the lens and the retina.
Feb 27, 2019 · The science behind eye color. The color of your eyes relies on the pigment melanin, the same pigment that's in your skin and hair. 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.
Jun 8, 2017 · Humans typically have three types of photo pigments—red, green and blue. Each type of cone is sensitive to different wavelengths of visible light. In the daytime, a lemon’s reflected light activates both red and green cones. The cones then send a signal along the optic nerve to the visual cortex of the brain.
