PRK (Photo Refractive Keratectomy) is a type of eye surgery that corrects refractive errors, including nearsightedness, farsightedness and astigmatisms. It is similar to LASIK surgery in that it reshapes the cornea. However, no flap is created during this eye surgery.
How PRK Differs from LASIK
PRK is very similar to LASIK eye surgery with one exception. A corneal flap is not created at the beginning of the procedure. This eliminates a surgical step and eliminates corneal flap problems after surgery.
However, it also means that the individual must wear a set of clear contact lenses after the surgery while the cornea heals. Both surgeries have similar success rates, and afterward, the need for corrective lenses on a daily basis is dramatically reduced or completely eliminated.