The Procedure Of Lasik Eye Surgery

A lot of people bothered by nearsightedness, farsightedness or astigmatism are eager

to ask LASIK eye surgery for help in order to get rid of glasses or contact lenses in their later life. However, many people do not have clear idea of the surgery. The following will give some introduction on LASIK eye surgery procedures.

LASIK eye surgery can correct corneal misshaping by removing excess corneal tissue so as to reshape the cornea. With the help of LASIK eye surgery, most patients can get rid of their glasses or contact lenses in their later life. LASIK eye surgery is taken by the following steps:

Before the surgery, surgeons will give patients some anesthetic eye drops or a mild sedative if needed to make patients to be awake but immobile. After a certain time, the anesthetic can perform its functions. Then it is time to get into the surgery.

The surgery is taken for three steps: The first step is to create the corneal flap. While lying down on a table, patients are kept their eyes open by a lid speculum, and a suction ring is placed on the eye, which may make patients feel some discomforts and pressures. Then microkeratome, a mechanical blade will be attracted to the suction ring, which is used to cut flap in the cornea. After cutting, the flap is lifted up and folded back. In this process, patients may also feel certain discomforts. In order to keep eyes focused, patients will be asked to stare at a blinking light.

The second step is to reshape the cornea. This is controlled by a computer or a surgeon. It uses an excimer laser to remove the corneal tissue in tens of micrometers. The pulses from the laser can vaporize and ablate the corneal tissue. You may think it will take long time to do this. Definitely not. It will take less than 1 minute to finish this procedure.

Then the last step is to close the flap. After removing corneal tissue and reshaping cornea, the next step is to close the flap and let the flap heal by itself. It is important to check if there are air bubbles, dirts of debris or if they properly fit. At last, a shield will be placed over the eye in order to keep patients from blows, rubbing or other external forces. Can you guess how long LASIK eye surgery takes? It will take an hour to finish the whole surgery, but the benefits to patients are great.

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by: Beatrices

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