Color Blindless Color blindness is the inability to distinguish particular colors. It is generally an inherited trait, but can result from a chemical imbalance or eye There are three primary colors. They are red, blue, and yellow. All other colors are the results of different combinations of primary colors. Special visual cells, called cones, are respon-sible for our ability to see color. People with normal vision have three different types of cones, each responsible for a different primary color. The absence of particular cones causes the absence of particular colors. This can be one cause of color blindness. There are four types of color blindness. The rares....

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