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Myopia (Nearsightedness)
Causes & Prevention
Submitted by Steve Ross on Wed, 01/03/2007 - 8:32am.
Myopia (nearsightedness) is one of several "refractive errors."
The eye has two parts that focus images — the cornea, which is the clear front surface of the eye, and the lens, which is a clear structure inside the eye that changes shape to help focus objects.
Submitted by Steve Ross on Mon, 07/30/2007 - 6:06pm.
Editor's Note:
"Race" is sometimes mentioned as a risk factor in the development of certain cancers and a number of other diseases. When you read this in a discussion about an illness, note that the explanation seldom refers to anything biological. Instead, it usually refers to behavior, such as eating habits. The kinds of behavior usually mentioned as risk factors are culturally determined. They are not genetic or biological.
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