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  1. en.wikipedia.org › wiki › Eye_colorEye color - Wikipedia

    In humans, brown is by far the most common eye color, with approximately 79% of people in the world having it. Brown eyes result from a relatively high concentration of melanin in the stroma of the iris, which causes light of both shorter and longer wavelengths to be absorbed. Dark brown eyes are dominant in humans.

  2. en.wikipedia.org › wiki › Category:Eye_colorCategory:Eye color - Wikipedia

    Wolfflin nodule. Categories: Iris (anatomy) Color. Beauty. Hidden category: Commons category link is on Wikidata.

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  4. www.verywellhealth.com › most-common-eye-color-5097413Most Common Eye Color: Percentages and Causes - Verywell Health

    • Why Your Eyes Are the Color They Are. Eye colors can range from pale blue to dark brown that looks black. The color of your eyes is determined by a combination of pigments in the iris, a two-layer structure that contains clusters of three main pigments: melanin, pheomelanin, and eumelanin.
    • Eye Color Percentages. Brown is the most common eye color in both the United States and the world. More than half of all people have brown eyes. Green eyes are considered to be the rarest—only 2% of all people have them.
    • Genetics of Eye Color. Multiple genes help determine your eye color. Research shows that you cannot predict a baby's eye color based only on the parents' eye colors because many genes are involved.
    • Why Brown Is Most Common. Researchers believe that brown eyes are the most common because our first human ancestors had this eye color. High levels of melanin help to protect the eyes from damaging sun rays.

  5. www.visioncenter.org › conditions › brown-eyesWhat to Know About Having Brown Eyes - Vision Center

    Feb 5, 2024 · Written by Vince Ayaga. Medically Reviewed by Dr. Melody Huang, O.D. 9 sources cited. Vision Center is funded by our readers. We may earn commissions if you purchase something via one of our links. In this article. What Causes Brown Eyes? Brown Eyes are the Most Common Eye Color. The Rarity of Brown Eyes and Its Shades.

  6. www.britannica.com › topic › eye-colourEye color | Description, Heredity, & Variations | Britannica

    Apr 25, 2024 · The most common colour of iris pigmentation is brown; global estimates suggest that about 79 percent of individuals have brown eyes.