Fig. 118. Square edge of a Hoffer IOL. Note that the edge extends posteriorly with the optic relatively recessed anteriorly. Although this created a barrier to epithelial cell growth, if epithelial cells did invade, growth was rapid because of lack of contact of the posterior capsule with the PMMA. The recessed space was created to make Nd:YAG laser capsulotomy easier and safer. (Courtesy of Kenneth J. Hoffer, MD, Santa Monica, CA.)