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Astigmatism

What is Astigmatism?

Astigmatism is an irregular curvature of the lens or the cornea of the eye.

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness.

Astigmatism is a lifelong condition. It may worsen slowly over time but usually, it remains stable throughout life.

What Causes Astigmatism?

Astigmatism is usually it is caused by an irregularly shaped cornea. However, sometimes it is the result of an irregularly shaped lens.

Astigmatism caused by an irregularly shaped cornea is called corneal astigmatism. Astigmatism caused by an irregularly shaped lens, is called lenticular astigmatism.

Usually astigmatism is hereditary. If one or both of your parents have it, you will probably develop it.

Symptoms of Astigmatism

Some of the most common symptoms are:

  • blurred vision
  • distorted vision
  • headaches
  • eye strain
  • squinting

How is Astigmatism Diagnosed?

Your eye doctor can diagnose astigmatism using a standard eye examination.

Treatments for Astigmatism

Both kinds of astigmatism can usually be corrected with eyeglasses, contact lenses or refractive surgery.

Can Astigmatism be Prevented?

No. Astigmatism is hereditary and is present at birth.

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