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  2. The Rarest Eye Color in the World: What It Is and Why

    www.aol.com/lifestyle/rarest-eye-color-world-why...

    Hazel eyes typically combine greens and browns with splashes of gold or orange, which can change depending on the lighting. ... And of course, the genes we inherit from our parents play a ...

  3. How Rare Are Hazel Eyes, Exactly? - AOL

    www.aol.com/rare-hazel-eyes-exactly-100600193.html

    Eye color is determined by the amount and distribution of melanin in the iris of the eye, in addition to the genes we inherit from our parents. With most eye colors, the amount of melanin is ...

  4. Eye color - Wikipedia

    en.wikipedia.org/wiki/Eye_color

    Hazel eye Hazel eye. Hazel eyes are due to a combination of Rayleigh scattering and a moderate amount of melanin in the iris' anterior border layer. [4] [35] Hazel eyes often appear to shift in color from a brown to a green. Although hazel mostly consists of brown and green, the dominant color in the eye can either be brown/gold or green.

  5. Heterochromia iridum - Wikipedia

    en.wikipedia.org/wiki/Heterochromia_iridum

    Heterochromia iridum. Heterochromia is a variation in coloration most often used to describe color differences of the iris, but can also be applied to color variation of hair [1] or skin. Heterochromia is determined by the production, delivery, and concentration of melanin (a pigment). It may be inherited, or caused by genetic mosaicism ...

  6. Champagne gene - Wikipedia

    en.wikipedia.org/wiki/Champagne_gene

    The champagne gene is a simple dominant allele responsible for a number of rare horse coat colors. The most distinctive traits of horses with the champagne gene are the hazel eyes and pinkish, freckled skin, which are bright blue and bright pink at birth, respectively. The coat color is also affected: any hairs that would have been red are gold ...

  7. Waardenburg syndrome - Wikipedia

    en.wikipedia.org/wiki/Waardenburg_syndrome

    Medical genetics. Waardenburg syndrome is a group of rare genetic conditions characterised by at least some degree of congenital hearing loss and pigmentation deficiencies, which can include bright blue eyes (or one blue eye and one brown eye), a white forelock or patches of light skin. These basic features constitute type 2 of the condition ...

  8. Human eye - Wikipedia

    en.wikipedia.org/wiki/Human_eye

    Hazel eye. Hazel eyes are due to a combination of Rayleigh scattering and a moderate amount of melanin in the iris' anterior border layer. [41] Hazel eyes often appear to shift in color from a brown to a green. Although hazel mostly consists of brown and green, the dominant color in the eye can either be brown/gold or green.

  9. Martin–Schultz scale - Wikipedia

    en.wikipedia.org/wiki/Martin–Schultz_scale

    Martin–Schultz scale. The Martin–Schultz scale is a standard color scale commonly used in physical anthropology to establish more or less precisely the eye color of an individual; it was created by the anthropologists Rudolf Martin and Bruno K Schultz in the first half of the 20th century. The scale consists of 20 colors [1] (from light ...