Astigmatism is a type of refractive error that affects vision. It occurs when the cornea, the front surface of the eye, or the lens, the structure inside the eye, is slightly curved or misshapen, causing light to be focused incorrectly on the retina. This causes distorted vision, blurred vision, and difficulty seeing at a distance. Astigmatism is a very common condition that affects both children and adults.
Symptoms of Astigmatism
Astigmatism can cause a variety of vision problems, including blurred vision, difficulty seeing far away, and eyestrain. People with astigmatism may also experience headaches, fatigue, and squinting.
Causes of Astigmatism
Astigmatism is caused by an irregular shaped cornea or lens. It can also be caused by an injury, disease, or another eye condition.
Treatment of Astigmatism
Treatment for astigmatism usually involves wearing corrective lenses such as eyeglasses or contact lenses. In some cases, surgery may be recommended.