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What is LASIK eye surgery?

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Quick Answer

LASIK eye surgery is a type of vision correction surgery that treats farsightedness, nearsightedness and astigmatism, according to WebMD. LASIK stands for laser in-situ keratomileusis.

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Full Answer

By reshaping the cornea to allow light to travel through it and correctly focus onto the retina, LASIK surgery can reduce or eliminate the need for wearing glasses or contacts. Around 96 percent of patients achieve good results with LASIK, according to WebMD, and report having their vision restored to the desired level.

One of the advantages of LASIK surgery is the fact that there is very little pain involved in the process; drops that numb the eye keep pain to a minimum. LASIK is also fast acting, with vision corrected either immediately or on the day following the surgery. According to WebMD, there are no stitches required and no bandages needed post LASIK surgery, and results can be adjusted over the years for further vision correction as required.

WebMD reports that LASIK surgery is not without its drawbacks. The changes made to the cornea during LASIK cannot be reversed. Permanent effects to vision can occur, including the loss of what is known as "best vision," which is the best vision achieved while wearing glasses or contacts. Some potential side effects of LASIK include seeing halos around images, fluctuating vision and difficulty driving at night.

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