PRK (Photorefractive Keratectomy)
PRK, or photorefractive keratectomy, is a type of laser eye surgery used to correct mild to moderate short-sightedness, long-sightedness, or astigmatism.
In PRK, the eye surgeon does not create a flap of corneal tissue. Instead, the outer layer of the cornea is removed to expose an area for a laser to reshape. PRK may be the best alternative for certain eye conditions if the cornea is determined to be too thin while Recovery from PRK takes a little longer than from LASIK because the outer layer of the cornea needs time to heal.
Depending on advice from an eye surgeon, a patient may be more suited to one procedure more than the other, though the result remains the same with substantially improved vision for patients