It is a type of laser eye surgery used to correct refractive errors, such as:
* Myopia (nearsightedness)
* Hyperopia (farsightedness)
* Astigmatism (blurred vision at all distances)
Here's how PRK works:
1. The outer layer of the cornea (epithelium) is removed. This is done using a laser or a surgical instrument.
2. The excimer laser reshapes the underlying cornea. The laser removes a precise amount of corneal tissue, altering the curvature of the cornea and improving the way light enters the eye.
3. The epithelium is allowed to regrow. This usually takes a few days.
PRK is a relatively safe and effective procedure. However, like all surgeries, it carries some risks and potential side effects, which your surgeon will discuss with you.