Astigmatism is an eye alteration wherein there is an abnormal curvature of the eye lens. Usually, the traditional way to correct astigmatism is to have eyeglasses.
Laser in situ keratomileusis, LASIK, well known name in refractive eye surgery, provides vision improvement through the use of a laser by restructuring the cornea and altering its focusing power. Since 1993, LASIK has been done in the U.S. on millions of patients with the use of a wide array of lasers.