Yes. Both are types of refractive surgery aimed at correcting vision, but the procedures differ. LASIK involves creating a thin flap in the cornea, reshaping the underlying tissue with a laser, then repositioning the flap. PRK, on the other hand, removes the outer layer of the cornea before reshaping the underlying tissue, and the outer layer regrows over time. The best procedure for you depends on various factors, including the thickness of your cornea and your lifestyle.