Astigmatism causes your vision to be blurred at both near and far distances. It occurs when your cornea is shaped more like a football than a basketball. This results in the distortion or tilting of images due to the unequal bending of light rays entering your eyes.
Common Questions About Astigmatism
How do I know if I have astigmatism?
Astigmatism usually is combined with nearsightedness or farsightedness. If you wear glasses or contacts for all distances, you may have astigmatism.
What causes astigmatism?
Astigmatism is a genetic condition that typically increases through your teens, but usually stabilizes in your twenties or thirties.
I have an astigmatism. Does this mean I am not a candidate for laser vision correction?
LASIK, PRK, or RLE can be used to treat astigmatism. The technique is chosen by your eye surgeon to match your unique needs rather than to match a specific eye condition.
Is astigmatism common?
Astigmatism is a very common condition and most people—especially those with higher degrees of nearsightedness (myopia) or farsightedness (hyperopia)—have an astigmatism to some degree.
What is astigmatism?
Astigmatism occurs when your cornea is oval or football-shaped, with two different curvatures. Images appear blurry or stretched because light rays are unequally focused. In extreme cases, images both close-up and in the distance appear blurred. Many people who have nearsightedness (myopia) or farsightedness (hyperopia) also have astigmatism.