Fig. 95. Selected ray tracing through four edge designs using three groups of rays: (1) rays that miss the lens; (2) rays that are refracted by the anterior surface, reflected internally by the edge, and then refracted by the posterior surface; and (3) rays that are refracted by both surfaces. Selected ray tracings are shown for nonlenticular lenses. Note the dispersion of the internally reflected rays in the design with rounded corners. (From Holladay J, Lang A, Portney V: Analysis of edge glare phenomena in intraocular lens edge designs. J Cataract Refract Surg 25:748, 1999, with permission.)