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LASIK STANDS FOR LASER IN-SITU KERATOMILEUSIS, AND THE CORRECTIVE PROCEDURES FOLLOWS:
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The Excimer laser removes microscopic layers of corneal tissue to change its shape, allowing light rays to focus more directly on the retina. |
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After your eye has been completely numbed using "eye drop" anesthesia, an eyelid holder will be placed between your eyelids to prevent you from blinking. Next, an instrument known as a microkeratome makes a protective flap in the cornea. During this process you may feel a little pressure, but no discomfort. You will be asked to look directly at a target light while the laser reshapes the cornea, usually in less than a minute. The cornea is reshaped under a protective flap. |
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To treat nearsightedness, the cornea must be made flatter. This is accomplished by removing tissue from the center of the cornea.
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To treat farsightedness, the central cornea must be made steeper. This is accomplished by directing the laser beam to remove tissue from around this area.
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To treat astigmatism, the cornea must be made more spherical. By changing the pattern of the beam, tissue is removed in one direction more than the other. |
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Then, the protective flap is folded back in place where it bonds securely without the need for stitches. After LASIK, some patients report a slight discomfort that usually goes away within twelve to twenty-four hours. The cornea is closed without the need for stitches. |
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