INTRAOCULAR LENS WITH EDGE MODIFICATION

摘要

Intraocular lenses (IOLs) (10) with modified edge characteristics are disclosed to inhibit transverse propagation of internally reflected light rays in order to alleviate, and preferably eliminate, dysphotopsia and/or the perception of dark shadows reported by some users. In one embodiment, IOL designs are disclosed that incorporate an opaque edge (18) or other mechanisms for capturing internally reflected peripheral light rays. In other embodiments, the peripheral region can include a light scattering material or can have a disproportional thickness or be contoured to redirect peripheral rays.