What is PRK?
PRK (Photorefractive Keratectomy) is a type of refractive surgery that uses an ultraviolet excimer laser to reshape the front surface of the eye, specifically the cornea. The cornea is the clear, dome-shaped structure that helps bend light, allowing it to focus accurately on the retina and enhancing visual clarity. Unlike LASIK, which involves creating a flap in the deeper layers of the cornea, PRK only removes the outer epithelial layer and reshapes the underlying corneal stroma. The epithelial layer naturally regrows over several days, meaning no permanent flap is created.