A vision correction system and an operating method thereof are provided. The vision correction system includes an evaluation device and a correction device. The evaluation device scans an eyeball of a person and records a spherical curvature of a cornea of the eyeball as an evaluation data. The correction device includes 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. The correction device further includes 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. The prevention area is formed as multiple convex arcs outwards from the correction area of the cornea of the eyeball, and each of convex arcs has a different radius.
