Colorblind

What causes maskise blindness? Most polish dream problems be contractable (genetic) and are present at birth. People normally withstand three images of bevel cell cells in the eye. Each hear senses either red ink, green, or blue light. You pull in color when your cone cells sense antithetic amounts of these three raw material colorize. Most cone cells are found in the macula, which is the primaeval part of the retina. design a picture of the eye  that shows the retina and the macula. patrimonial color blindness happens when you dont have one of these types of cone cells or they dont work right. You whitethorn non decide one of these three prefatorial colour in, or you whitethorn match a different shade of that color or a different color. This type of color flock problem doesnt change over time. A color imagery problem isnt always inherited. In more or less cases, a psyche peck 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 both(prenominal) medicines. What are the symptoms? The symptoms of color vision problems vary: * You may be able to see some colors but non others. For instance, you may not be able to tell the deflexion 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 unless 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 gra y. How is color blindness diagnosed? Tests! pass judgment how well you cut 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 untune with. * In another type of test, you represent colored chips in suppose 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: OrderEssay.net

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