Color Blindness Essay

1499 Words Jun 17th, 2012 6 Pages
1st period

Color Blindness Color blindness is the inability to see certain colors in the usual way; also called a color vision problem. A color vision problem can change your life. It makes it harder to learn and read, and you may not be able to have certain careers. Many young children get teased because of their condition, and few will believe what they are told. But people with color blindness can and have learned to make up for their problems seeing color. Color blindness affects a good amount of people, although exact proportions are different among ethnic groups. For example, in Australia it occurs in about eight percent of males and about point four percent of females. Isolated groups with a little gene pool
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The nerves are called cones, on the retina, the light sensitive tissue layer that lines the back of the eye. We have 6 to 7 million cones in the human retina, and they are responsible for color vision. If just one pigment is missing, then you may have trouble telling the difference between green and red. That is the most common type of color blindness. If a different pigment is missing, then you may have trouble telling the difference between yellow and blue. Normally, people with yellow and blue color blindness usually have problems identifying reds and greens, too. The most severe, but rare form of color blindness is Achromatopsia. Someone with this condition can’t see any color, so they see shades of gray. Achromatopsia is often associated with lazy eye, nystagmus (when the eye makes small, jerky movements), severe light sensitivity, and very poor vision. This condition isn’t always inherited; sometimes it can

be caused by aging, injury, or side effects to medication. (Fu, Michael MD, http://www.eyehealthweb.com/conditions/color-blindness/) Often, the symptoms may be so unnoticed that some people do not know they are color blind. When a child is learning their colors, the parent should be able to tell if they are color blind. Nystagmus may occur in severe cases. Color blindness is a lifelong condition, and most people are able to adjust to it without difficulty or disability. The observation
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