Astigmatism occurs when the cornea's shape is like a football, more curved in one direction than the other. Light entering the cornea focuses in more than one point within the eye, resulting in blurry and distorted vision. To treat astigmatism, the cornea must be made spherical, like a basketball. This is done by making two incisions in the steepest part of the cornea, causing it to relax and become more round. Astigmatic Keratotomy is often performed in conjunction with other refractive procedures.