Word: keratophakia
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...lathe set by computer calculations. After thawing, the cornea slice is stitched back on the eye. To correct nearsightedness, the surgeon removes tissue from the center of the cornea, thereby flattening it. In farsighted patients, tissue is removed from the periphery to accentuate the curve. A similar operation, called keratophakia (cornea lens), is used to correct only farsightedness. After the front of the cornea is sliced off, a reshaped donor cornea (from an eye bank) is inserted in its place. The front of the original cornea is then sewn back on, resulting in a more sharply curved structure...
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