With modern LASIK, the enhancement rate is 1-2 percent in the first 12 months and then about 1 percent a year after that as patients’ eyes can change with time. So, for example, 10 years after LASIK, approximately 10 percent of patients may require an enhancement procedure to maintain their excellent vision.

LASIK, or “laser-assisted in situ keratomileusis,” is the most commonly performed laser eye surgery to treat myopia (nearsightedness), hyperopia (farsightedness) and astigmatism.

Like other types of refractive surgery, the LASIK procedure reshapes the cornea to enable light entering the eye to be properly focused onto the retina for clearer vision.

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