Photorefractive keratectomy, or PRK eye surgery, is a type of treatment very similar to LASIK eye surgery. It uses the same type of laser, and differs only in the method used to remove the top layer of the cornea (front surface of the eye) prior to the laser treatment. While in LASIK a thin flap is lifted from the cornea so the laser can treat the central corneal tissue; in PRK the top layer (epithelial layer) of the cornea is gently removed or polished from the surface prior to the laser treatment to reshape the underlying corneal surface. In both cases topical eye drops are used to anesthetize the eye so the procedures are completely painless.

PRK Eye Surgery Videos: