Laser vision correction, also known as Photorefractive Keratectomy, is the predecessor to LASIK (Laser In-situ Keratomileusis) and is a commonly performed procedure that can produce excellent results. PRK is often performed when a patient’s cornea is too thin for LASIK. The main difference between PRK and LASIK is that PRK does not require the creation of a corneal flap. Instead, the epithelium or the eye’s outermost layer is removed and then the laser energy is applied directly to the surface of the eye.
Although the results of PRK are comparable to LASIK, the recovery process is different. Because the epithelium layer is removed during PRK, it takes a few days for this layer to regenerate and re-cover the surface of your eye. There is a slightly higher risk of visual haziness and eye infection in the first few days after PRK compared to LASIK recovery.