What is the difference between PRK & LASIK?
Both of the procedures use the excimer laser to reshape the cornea to correct nearsightedness, farsightedness, and astigmatism. The difference is that with PRK the laser is used on the surface of the eye and in LASIK the laser is used under a thin protective corneal flap. The long-term results are similar. With LASIK, however, visual recovery is faster and there is less post-operative discomfort. With PRK, post-operative drops are needed for several weeks. With LASIK, drops are only needed for 4-10 days.
