Color Blindness is a condition in which the ability to distinguish specific range of colors is average. A person suffering from color blindness has trouble seeing red, green, blue, or a combination.
A person’s ability to see some combination of colors is rarely lost (monochromacy). Many people believe that only black and white colors are caught in a person suffering from Full(monochromacy) type. It has many different types and levels.
According to one of most popular survey, They will found 8% in men and only 0.5% in women.
Types OF Color Blindness and their levels
Red-Green Type
It is mostly seen in familial causes is damage or reduced red con or green con pigment function. There are four sub type of Red Green Type
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Protanomaly – due to the unusual occurrence of red cone pigments. In this type, red, orange, and yellow appear green, and the colors are not bright. This condition is benign and usually does not affect daily life.
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Protanopia – In this type, the red cone pigments stop working, and the red will appears as black. Some variants of orange, yellow and green all appear as yellow.
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Deuteranomaly – This is the most common type of found in peoples. It has an unusual green cone pigment. Yellow and green appear as red, purple and blue are difficult to identify. This condition is benign and usually does not affect daily life.
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Deuteranopia – In this, green cone pigments stop working. They see red colors as brownish-yellow and green as dark yellow.
2. Blue-Yellow Type
Blue-yellow type is rarer than red-green. In this, the blue cone pigment (triton) is either absent or has a limited function. There are two types of blue-yellow type.
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Tritanomaly – Blue cone pigments have less function. The blue color appears as green, and it cannot be easy to differentiate from pink to yellow and red.
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Tritanopia – People with Tritanopia lack blue cone cells. Blue appears green in this, and the yellow color looks like purple or light brown.
3. Full (Monochromacy) Type
People with full type (monochromacy) do not see any colors, and their clarity of vision can also be affected. There are two types of monochromacy
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Cone monochromacy – In this, two or three cone cell pigments do not work. People with cone monochromacy have difficulty distinguishing between colors because the brain needs signals from different types of cones to see. This comparison is not possible when only one type of cone works.
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Rod Monochromacy – It is present from birth. It does not contain any of the available pigments of cone cells. People with rod monochromacy see the world in black, white, and gray. People with rod monochromacy are photophobic and very uncomfortable in bright environments.
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