| 摘要 |
A method for altering the curvature of the cornea of an eye includes the steps of making pairs of closely spaced, parallel incisions at predetermined sites on the surface of the cornea; removing the corneal tissue disposed between the incisions in each pair of incisions; and closing the incision at each site to exert a force on the cornea which increases its curvature. An instrument for altering the curvature of the cornea includes a shaft, a cutting tool mounted at one end of the shaft, the cutting tool having two parallel blades separated by a predetermined distance for making pairs of closely spaced, parallel incisions in a patient's cornea. The method and instrument enable correction for hyperopia and other types of refractive errors of the eye.
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