What is PRK?
Due to the anatomy of their eyes, some patients are not good candidates for LASIK. In some cases, a procedure called photorefractive keratectomy (PRK) may be a safer alternative. The cornea is re-shaped with a laser similar to a LASIK procedure, but there a few important differences between the two procedures. Unlike LASIK, there is not flap creation during the PRK procedure.
Patients who undergo PRK tend to have a little bit more discomfort in the first couple of days after the surgery. In addition, the results of PRK may take up to 4-6 weeks to be realized. This PRK procedure may be preferred in patients who have a risk of injury to the eye or a thinner cornea.