Is 20/20 vision guaranteed with PRK, LASEK and Epi-LASIK?
Excimer laser surgery is an extremely advanced technology for surgical vision correction. The excimer laser is one of the most precise instruments available for use in modern medicine, and it can be programmed to match exactly the refractive correction your eye needs to see well. As such, the vast majority of people undergoing excimer laser surgery are very happy with their post-procedure vision. In fact, a person’s happiness with their vision after the procedure is a far more important measure of success than the somewhat arbitrary “20/20” measurement done in a dark room of a doctor’s office. Several factors may lead to a person having vision after the surgery which still requires additional help from glasses or contact lenses. The excimer laser is precise enough to inscribe letters on a grain of sand and could correct an inert object, such as a piece of plastic, exactly as predicted. However, in PRK, LASEK and Epi-LASIK surgery, it is not being applied to something inert, but rather,
