| 摘要 |
A method for modifying the curvature of a live cornea to correct a patient's vision. First, at least one relatively small opening is made in the cornea for inserting a fiber optic cable or micro-cutting tool therein to create a pocket or cavity with first and second opposed internal surfaces. The laser beam or micro-cutting tool can be directed onto one of the first and second internal surfaces, or both, if needed or desired to incrementally and sequentially ablate or remove three-dimensional portions of the cornea. If a laser beam is used, then a flexible template can be inserted into the opening in the cornea for accurately controlling the pattern to be ablated within the cornea. Preferably, the live cornea is then left alone to collapse and obtain its new refractive power by waiting a set period of time. After waiting the set period of time, the cornea is then examined to determine the new refractive power of the cornea. Now, ocular material can be introduced to the cornea to further modify the curvature of the cornea as needed. The ocular material can be either a fluid or a solid lens or a combination thereof. In either case, the ocular material is transparent or translucent material with either a refractive index substantially the same as the intrastromal tissue of the cornea, or a different refractive index from the intrastromal tissue of the cornea.
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