Fig. 38. SEM of a Rayner C-flex model 570 IOL demonstrates the raised square edge of the optic at the optic haptic junction. The optic is equi-convex with raised edges on both the anterior and posterior surfaces. There is a slight concavity central to the edge, but the posterior capsule applies itself to the concavity in continuous fashion without leaving a space. (Courtesy of Rayner Surgical Inc., Los Angeles, CA.)