What to do before Laser eye surgery (LASIK)? LASIK (Laser-Assisted in Situ Keratomileusis) surgery is often recommended for certain eye conditions and it has a high success rate in treating vision problems, particularly nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. During LASIK surgery, the surgeon uses a specialized laser called an excimer laser to reshape the cornea. By reshaping the cornea, LASIK aims to...