Dr. Anthony Roberts is the founder and ophthalmologist-in-chief of Shady Grove Ophthalmology, an established eye care clinic in Rockville, Maryland. Together with his team at Shady Grove, Dr. Anthony Roberts has performed over 81,000 refractive eye surgeries, including cataract extraction and laser in-situ keratomileusis (LASIK). Refractive eye surgery, also known as laser eye surgery, is a procedure for correcting farsightedness, nearsightedness, and astigmatism. This procedure corrects the refractive state of the eye and leads to improved vision. People who had refractive eye surgery should rarely have to use contact lenses or eye glasses. There are several types of refractive eye surgeries, the most common are LASIK and photorefractive keratectomy. Both these surgeries use lasers to reshape the cornea, the clear outer layer at the front of the eye which functions by focusing light for vision. Since the US Food and Drug Administration approved LASIK in 1999, over 18 million Americans have undergone this surgery to treat nearsightedness, farsightedness, and astigmatism. Over 700,000 LASIK surgeries are performed each year. Other types of refractive eye surgery include refractive lens exchange, presbyopic lens exchange, and Limbal Relaxing Incisions.