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Astigmatism is a common imperfection in the curvature of the eye.

Astigmatism is a common, and usually easily treatable imperfection in the curvature of the eye. The condition can cause blurred vision at distance and near viewing.

Astigmatism occurs when the front surface of your eye (the cornea) or the lens inside your eye has a slightly different surface curvature in one direction. (Instead of being even and smooth in all directions, the surface may have some areas that are flatter or steeper.)

Astigmatism blurs vision at all distances. It is often present at birth and may occur in combination with myopia (nearsightedness) or hyperopia (farsightedness).

Symptoms

Signs and symptoms of astigmatism may include:

Distortion in portions of your visual field
Blurred vision
Eyestrain
Headaches

Treatment

Astigmatism is not usually pronounced enough to require corrective action, but when it is, your treatment options include glasses, contact lenses, or refractive surgery (i.e. LASIK).

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