Photorefractive keratectomy, commonly known as PRK eye surgery, is a noninvasive refractive surgery during which an eye surgeon uses a laser to reshape the cornea. This laser, which delivers a cool pulsing beam of ultraviolet light, is used on the surface of the cornea, not underneath the cornea, as in LASIK.
PRK eliminates or reduces moderate nearsightedness (myopia), hyperopia (farsightedness), and astigmatism. Successfully treated PRK patients no longer require corrective lenses, and those who do still require correction, require much less.
Patients choose the PRK eye surgery for different reasons. Some simply no longer want to wear eyeglasses for cosmetic reasons. Sports enthusiasts may find eyeglasses or contact lenses troublesome during physical activities. Others may experience pain or dryness while wearing contact lenses.