Most color dream problems be inherited (genetic) and are present at birth.
People normally have three images of bevel cell cells in the eye. Each figure senses either red ink, green, or blue light. You pull in color when your cone cells sense different amounts of these three basic colorize. Most cone cells are found in the macula, which is the central part of the retina.
design a picture of the eye  that shows the retina and the macula.
Inherited color blindness happens when you dont have one of these types of cone cells or they dont work right. You whitethorn non see one of these three basic colour in, or you whitethorn see a different shade of that color or a different color. This type of color flock problem doesnt change over time.
A color vision problem isnt always inherited. In some cases, a psyche can have an acquired color vision problem. This can be caused by:
* Aging.
* Eye problems, such as glaucoma, macular degeneration, cataracts, or diabetic retinopathy.
* Injury to the eye.
* Side effects of some medicines.
What are the symptoms?
The symptoms of color vision problems vary:
* You may be able to see some colors but not others. For instance, you may not be able to tell the difference between red and green but can see blue and yellow.
* You may see many colors, so you may not write out that you see color differently from others.
* You may only be able to see a few shades of color, turn most people can see thousands of colors.
* In old cases, you may see only black, white, and gray.
How is color blindness diagnosed?
Tests pass judgment how well you recognize different colors.
* In one type of test, you look at sets of colored dots and try to find a pattern in them, such as a earn or number. The patterns you see help your doctor know which colors you have trouble with.
* In another type of test, you represent colored chips in order according to how similar the colors are. People with color vision problems cannot arrange...If you want to get a full essay, order it on our website: Ordercustompaper.com
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