"Color Blindness"

Color cecity is the in cogency to distinguish particular colors. It is principally an inherited trait, exclusively nates result from a chemical imbalance or eye injury.         There argon 3 essential colors. They ar red, blue, and yellow. All other colors atomic number 18 the results of disparate combinations of primary colors. Special visual cells, called cones, are respon- sible for our ability to apprehend color. mint with approach pattern vision spot three different types of cones, each amenable for a different primary color.         The absence of particular cones causes the absence of particular colors. This mint be one cause of color craftness. There are four types of color blindness. The rarest craps are mono- chromatism and a-typical monochromatism. people with monochromic vision, or total color blindness, has no cones at all. As a result, they have no ability to debate colors, and no hue disparity whatsoever. Monochromatic vision is very similar to observance a black and white television program.         Somebody with a-typical monochromatic vision has exactly one type of cone, and can see just one color, and various dark glasses of that color. This form is flat rarer than the typical monochro- matism.         A nonher, more common, form of color blindness is called dichromatism. People with di- chromatic vision tend to frustrate red, green, and gray, just can easily distinguish blue and yellow.

Some can non even see the hourlong wavelengths of light -- the red end. Though it is rare, others cannot see the short wavelengths, heartfelt the violet end. These people tend to confuse blue, yellow, and gr! ay, but not red and green.         Normal vision is called trichromatism. nigh color blind people have a variance of trichro- matism called anomalous trichromatism. People with this condition can see the corresponding colors as people with normal vision, but not as well. For example, many people with this... If you desire to get a full essay, order it on our website: OrderEssay.net

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