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A 41-year-old member asked:

Help docs! i'm trying to find out what causes nearsightedness/farsightedness ?

1 doctor answer1 doctor weighed in
Dr. Tim Conrad
Ophthalmology 35 years experience
Imbalance: Nearsightedness and farsightedness are caused by an inappropriate amount of refraction for the particular eye. In nearsightedness, the amount of focusing present is too much for the length of the eye. In farsightedness, it is the opposite.
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Last updated Jan 6, 2014
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