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Eye color is determined by the amount and distribution of melanin in the iris, controlled by genetics:
1. Melanin Levels: High melanin leads to brown eyes, while lower levels produce blue, green, or gray eyes.
2. Genes: Multiple genes influence eye color, with two main ones (OCA2 and HERC2) playing significant roles.
3. Variation: Eye color can appear different due to lighting or health conditions, but it generally stabilizes in early childhood.
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