Do People Have Purple or Violet Eyes? The Science Behind This Rare Color
Do People Have Purple or Violet Eyes? The Science Behind This Rare Color
4.1K views5 months ago
wikiHowKerry Assil, MD
Blue eyes are the result of a genetic mutation in the OCA2 gene, which affects melanin production in the iris. This mutation doesn’t turn off the gene entirely but limits melanin, creating blue instead of brown eyes. In 2008, researchers at the University of Copenhagen found that all blue-eyed individuals share this exact mutation, suggesting it came from a single common ancestor. This person likely lived in Europe—possibly near the Black Sea—about 6,000 to 10,000 years ago. Before this mutation
0:16
Blue eyes are the result of a genetic mutation in the OCA2 gene, which affects melanin production in the iris. This mutation doesn’t turn off the gene entirely but limits melanin, creating blue instead of brown eyes. In 2008, researchers at the University of Copenhagen found that all blue-eyed individuals share this exact mutation, suggesting it came from a single common ancestor. This person likely lived in Europe—possibly near the Black Sea—about 6,000 to 10,000 years ago. Before this mutation
4K viewsMay 9, 2025
FacebookWorldatlas.com
Blue eyes, a recent mutation, trace back to one ancestor near the Black Sea 6,000-10,000 years ago. This single genetic change transformed human appearance. The blue eye phenomenon traces back to a single genetic mutation in the OCA2 gene, which occurred in one individual between 6,000 and 10,000 years ago. This mutation reduces melanin production in the iris, creating the blue color. Before this time, blue eyes did not exist. Originally arising in the Black Sea region, this new trait spread thr
0:25
Blue eyes, a recent mutation, trace back to one ancestor near the Black Sea 6,000-10,000 years ago. This single genetic change transformed human appearance. The blue eye phenomenon traces back to a single genetic mutation in the OCA2 gene, which occurred in one individual between 6,000 and 10,000 years ago. This mutation reduces melanin production in the iris, creating the blue color. Before this time, blue eyes did not exist. Originally arising in the Black Sea region, this new trait spread thr
2.3K views7 months ago
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6 Rare and Unique Eye Colors | eyeXam Optometry
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