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Lasik Vision Correction


In LASIK vision correction, the corneal flap is folded back and a thin layer of corneal tissue below is removed with the light of the excimer laser. This permanently flattens the cornea so that light rays are focused more directly on the retina and images are clearer. After this procedure is completed, the corneal flap is replaced and bonds back into place without the need for stitches.

Prior to PRK or LASIK treatment, a patient’s correction is entered into a computer, and the laser is then programmed to deliver an exact number of overlapping pulses of ultraviolet light to remove small amounts of corneal tissue. When the center of the cornea is flattened, light rays are focused more directly on the retina, making images clearer.

LASIK eye diagram

Diagram of where light focuses in an eye before and after a LASIK procedure.

You may be a candidate if you have myopia, hyperopia with or without astigmatism, or a bothersome need for reading glasses. You must be 18 years of age or older, and your eyes must be healthy – free from retinal problems, corneal scars and eye disease. Certain eye disorders and medical problems can prevent laser surgery from being performed safely, and must be thoroughly discussed with your physician.