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10 Eye-Popping Facts About Vision

1.The Rainbow Women

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Some women can see more color than the rest of population—not just an extra shade here or there but in technicolor most of us can’t even comprehend. Called tetrachromats, they see vivid colors where others merely perceive monotone shades. It’s a literal rainbow world, and it seems to be an exclusive female one. Everyone has three kinds of cone cells in their eyes and each reads a different light bandwidth.

They combine frequencies to recognize individual colors. An extra cone adds hundreds of combinations and a huge extra set of colors. It’s estimated that about 12 percent of women might have an extra cone, but not all of them are tetrachromats. The true ones are rare, and they don’t always have it easy. Because this genetic condition remains widely unknown, they are seldom believed whenever they attempt to share their magical sight.

 

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