The microscopic incisions on the outer portion of the cornea allow the center of the cornea to flatten. When the incisions heal, the cornea has a different shape, a flatter center. The flattening of the cornea moves the focal point closer to the correct position on the retina, similar to the way glasses and contact lenses correct the path of light rays as they enter the eye.
Because some people are better candidates for keratotomy than others, consultation with the doctor prior to surgery is important to determine estimated benefits and possible complications. To be eligible for keratotomy, the eye must be in good health. In cases of RK, the myopia must also be stable (generally occurs in early adulthood).
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