Mar 18 2011

What is astigmatism?

Category: Health & Beauty

Answer:

Anatomy of the EyeAstigmatism is due to either an irregularly curvature of the cornea (corneal astigmatism) or an irregularly shaped lens (lenticular astigmatism). It is typically a hereditary condition (can also be due to injury) that will come about when the cornea or lens takes on an oval like shape rather than a spherical one. In many cases, this oblong shape allows light to focus on two points in the back of your eye (retina), instead of just one. A typical case of astigmatism is often easily corrected with contact lenses, glasses, or refractive (LASIK) surgery. Irregular astigmatisms are often a bit more difficult to correct, depending on the degree of the abnormality.


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