Color Blindness

Paper Summary:

This paper briefly explains the biology of the eye and the problems that cause color blindness. It looks at what happens in the visionary process between perception and understanding of colors.

From the Paper:

"Many people do not know what color blindness is, why it happens, and the different types of color blindness. Color blindness is not total blindness. People with color-blindness can see things, but see everything in one color, or in misrepresented colors. Some of them may be able to see some colors, but not see other colors, while some may see no colors at all. John Dalton, a British Chemist, discovered color-blindness. He himself was colorblind. Color blindness occurs in our retina. The human retina converts the light energy that falls on the retina in the eye and converts it into electrical energy. These electrical impulses are then sent on to the brain. The photoreceptor cells do the conversion of the electrical energy. These cells are of two types- rods and cones. People who have normal eyesight are able to combine the inputs from these cells into different combinations and see color. A set of special receptor cells in the eyes called cones located in our eyes gives us our color vision. The cones are the cells to distinguish between colors."

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