The cornea is the clear front window of the eye. It should be dome-shaped and symmetrical in all directions. If the cornea is unevenly curved (like the back of a spoon), then light entering the eye bends unevenly. This is called astigmatism. In addition to the cornea, the lens inside of the eye can also cause astigmatism.
People with astigmatism have vision that is blurry and distorted both far-away and close-up. Astigmatism is similar to looking into a fun house mirror, where objects appear stretched-out or irregular.
Many people with astigmatism also have nearsightedness or farsightedness. Astigmatism is just another part of their prescription.
Visit the American Academy of Ophthalmology’s EyeSmart® website to learn more about Astigmatism.