What Is Astigmatism?
Astigmatism is an uneven or irregular shape of your cornea, the front surface of your eye, or your lens, the part of the eye that focuses light onto your retina. If you have astigmatism, your vision may be blurred or distorted at all distances, near or far.
What Astigmatism Means
Astigmatism is not a disease; this is a very common misconception. It’s simply a variation in the shape of your cornea or lens, and it’s very common in people of all ages. If you are nearsighted or farsighted, there's a good chance you’ll also have a significant level of astigmatism. A small degree of this refractive condition is considered normal and does not require correction. But when astigmatism affects your ability to see clearly, glasses, contacts, LASIK surgery or implanting astigmatism-correcting intraocular lenses (IOLs) during cataract surgery are common ways to solve the problem.