METHOD FOR DESIGNING CONTACT LENSES WITH SEMI-CUSTOMIZED BACK SURFACE

摘要

PROBLEM TO BE SOLVED: To provide a method for designing a soft contact lens with a semi-customized back surface.SOLUTION: The method includes: measuring axial radius topography data for a plurality of eyes of a specific population; calculating an apical radius distribution and a conic constant distribution from the axial radius data; measuring an apical radius value and a conic constant value for an individual patient; selecting a subset of base curves from a base curve library on the basis of the individual patient's apical radius and conic constant values; and selecting a final base curve from the subset of base curves that fits the individual patient's needs on the basis of one or more selection criteria.SELECTED DRAWING: Figure 7