Patent ID: 8298214

Claim:
A vision correction system, comprising: an evaluation device, for scanning an eyeball of a person, and recording a spherical curvature of a cornea of the eyeball as an evaluation data; and a correction device, comprising: an operation unit, for receiving the evaluation data recorded by the evaluation device and operating on and converting the evaluation data into a correction data; and a laser unit, controlled by the operation unit for respectively forming a correction area and a prevention area on the cornea of the eyeball of the person according to the correction data, wherein the prevention area is formed as multiple convex arcs outwards from a periphery of the correction area, and each of the convex arcs has a different radius, wherein a first curvature data is pre-calculated by the evaluation device from the periphery of the correction area, and then a first convex arc is formed by cutting the periphery of the correction area according to the first curvature data by the laser unit; a second curvature data is pre-calculated by the evaluation device from a periphery of the first convex arc, and then a second convex arc is formed by cutting the periphery of the first convex arc according to the second curvature data by the laser unit.