Blue eye color comes from no melanin in the iris. A little melanin gets you green and hazel, more melanin shows up shades of brown to black. Just like in your skin, melanin protects your eyes from the sun. Just like pale skin, sunlight hurts pale(blue) eyes and is less harmful to darker eye with more melanin. Just like your skin will start to feel uncomfortable as it burns, the light hurts your unprotected eyes.
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Blue eye color comes from no melanin in the iris. A little melanin gets you green and hazel, more melanin shows up shades of brown to black. Just like in your skin, melanin protects your eyes from the sun. Just like pale skin, sunlight hurts pale(blue) eyes and is less harmful to darker eye with more melanin. Just like your skin will start to feel uncomfortable as it burns, the light hurts your unprotected eyes.