Isaac Porter, MD explains that astigmatism is an uneven curvature of the eye that can be corrected with glasses, contact lenses, LASIK, or cataract surgery with toric lens implants. Astigmatism is very common and many patients do not understand what it is. In this episode of A State of Sight, astigmatism is clearly defined in an understandable way. eyeporter.com http:/facebook.com/eyeporter twitter @eyeporter