LASIK eye surgery

Laser-assisted in-situ keratomileusis (LASIK) eye surgery is a procedure that corrects certain vision problems, reducing or eliminating the need for eyeglasses or corrective lenses.

LASIK eye surgery is the most common type of refractive surgery. Refractive surgery changes the shape of the dome-shaped transparent tissue (cornea) at the front of your eye.

The desired result of LASIK eye surgery is to bend (refract) light rays to focus more precisely on your retina rather than at some point beyond or short of your retina.

The goal of LASIK eye surgery is to produce clearer, sharper vision.

Why it's done Risks How you prepare What you can expect Results

LASIK eye surgery may be an option for you if you have one of these vision problems:

  • Nearsightedness (myopia). When your eyeball is slightly longer than normal or when the cornea curves too sharply, light rays focus in front of the retina and blur distant vision. You can see objects that are close more clearly, but not those that are far away.
  • Farsightedness (hyperopia). When you have a shorter than average eyeball or a cornea that is too flat, light focuses behind the retina instead of on it. This makes near vision and sometimes distant vision blurry.
  • Astigmatism. When the cornea curves or flattens unevenly, the result is astigmatism, which disrupts focus of near and distant vision.

Your eye doctor will likely recommend that you try other ways of correcting your vision, such as by using glasses or contact lenses, before you turn to LASIK eye surgery or another similar refractive procedure.

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