CHIRAL SCLERAL LENSES

摘要

The present disclosure relates to trial scleral lenses, and the resulting scleral lenses, designed for the asymmetric shape of the sclera and/or its chiral properties. In some embodiments, the scleral lenses are also designed for the specific asymmetry associated with different scleral diameters. In addition, as discussed herein, the scleral shape can vary with different conditions of the eye. By designing a set of trial scleral lenses that takes into account these different asymmetric properties of the sclera, a clinician can be more efficient, fitting more eyes with fewer subsequent modifications. The resulting lenses will also achieve a better fit.

主权项

1. A set of trial scleral lenses comprising:
a right lens configured with four specified hemi-meridian contours that each corresponds to a rotationally asymmetric hemi-meridian characteristic of a right eye; a left lens configured with four specified hemi-meridian contours that each corresponds to a rotationally asymmetric hemi-meridian characteristic of a left eye; wherein the right lens is chiral with respect to the left lens; and wherein the four specified hemi-meridian contours of each of the right and left lens are based on a haptic reference angle calculated for one of the four rotationally asymmetric hemi-meridians of the left or right eye.