In the United States LASIK is the most popular surgical procedure to correct common vision problems like nearsightedness, farsightedness, astigmatism, and presbyopia.

LASIK (laser-assisted in situ keratomileuses) is a laser eye surgery that reduces and eliminates the need to wear prescription glasses or contact lenses. In most cases, LASIK is pain-free and both eyes can be treated in 15 minutes. Patients notice improved vision within 24hours. Topical anesthetic drops are all that is required for laser eye surgery, and no bandages or stitches are used during the procedure.

First, the eye surgeon cuts a thin, circular “flap” in the cornea, then folds the flap back to remove some corneal tissue using an excimer laser. A cool ultraviolet light is used to remove microscopic amounts of tissue from the cornea. This gentle reshaping allows the cornea to more accurately focus light on the retina thus improving vision.Nearsighted people need their cornea to be flattened out, while farsighted individuals need a steeper cornea to improve their vision. The flap is then laid back over the cornea and is left to heal naturally.

The video below shows how laser eye surgery is performed.

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