Photo-refractive Keratectomy (PRK)
An excimer laser is used to ablate small bits of tissue from the surface of the cornea in order to re-shape it. The re-shaped cornea will focus light entering the eye and onto the retina more accurately, thus resulting in clearer vision.
For information on how PRK and Lasik differ see – How do PRK, Lasik and Wavefront differ?
