
PRK involves removal of the surface layer of the cornea by softening and gently scraping that layer from the cornea. The cells begin to grow back rapidly, establishing a fine single layer within 3 - 5 days of surgery. The full thickness of several layers will take months to regenerate.
PRK was the earliest technique used in Laser Eye Surgery and remains a good alternative under certain circumstances. It does, however, involve a longer period of recovery than LASIK and is associated with greater discomfort. As well, vision may fluctuate more on a day to day basis. Surgeons who do not use the IntraLase may recommend PRK over traditional LASIK when performing a Wavefront treatment.
You can anticipate watery eyes, light sensitivity and a gritty, burning sensation for up to 48 hours following surgery. Discomfort is managed with a bandage contact lens over the treated area for 3 - 5 days, eye drops, oral pain relievers, artificial tear drops and dark glasses. Visual acuity is typically crisp enough to drive and return to work within five to seven days. Individual results vary depending upon the healing pattern of your eyes.