Patent ID: 8789947
Filing Date: 2014-07-29
Classification: G02C

Abstract:
1. A method of designing and forming a contact lens for retarding myopia progression, the method comprising the steps of: a) acquiring and averaging ocular wavefront data maps from an individual's eyes prior to orthokeratology treatment; b) converting the ocular wavefront data maps from the individual's eyes prior to orthokeratology treatment to a pre-treatment refractive power map by calculating the powers based on the radial slopes along the visual axis through the pupil center of the individual's eyes; c) acquiring and averaging ocular wavefront data maps from the individual's eyes after orthokeratology treatment; d) converting the ocular wavefront data maps from the individual's eyes after orthokeratology treatment to a post treatment refractive power map by calculating the powers based on the radial slopes along the visual axis through the pupil center of the individual's eyes; e) subtracting the pre-treatment refractive power map from the post treatment refractive power map to create a treatment map; f) averaging all of meridians of the treatment map to generate a rotationally symmetric power map; g) alternately averaging the individual meridians of the treatment map together to generate a non-rotationally symmetric power map; h) trimming the rotationally and non-rotationally symmetric power-maps to a diameter substantially corresponding to an optic zone of a contact lens; and i) forming a soft contact lens having an optic zone with the power maps incorporated therein.