Optical lens, method for determining the change of format required in the cornea of an eye to achieve a universal vision correction and method for improving or planning the improvement of vision in one eye

摘要

Optical lens, method for determining the change of format required in the cornea of an eye to achieve a universal vision correction and method for improving or planning the improvement of vision in one eye.A "improves universal" vision is obtained effectively by modifying the format of corneal refractive surface to a format of "turtle shell" ideal, which is the necessary tax adjustment of curvature to achieve the correction of distance vision.According to one implementation, the cornea is effectively formed to the shape of turtle shell for corneal surgery, preferably laser ablation surgery. According to a second implementation, a contact lens with the desired shape of turtle shell corrected for distance in use anterior face is positioned on the cornea.