Color Blindness in Istanbul,Turkey Cost & Reviews | Meditravelist
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Color blindness is a genetic condition. All color-blind people can see almost all colors but they cannot distinguish between certain colors. Not all of them have trouble with the same colors. Most cannot distinguish between red and green. Some cannot distinguish between blue and yellow. A very small group see only black and white (monochromatism).  They are not able to see shades or tones of the same color. It mostly affects men than women.