Fig. 67. The principles gained in the earlier studies by Choyce, Kleman, Clemente, Apple and associates, and others on initially nonfoldable PMMA designs have been successfully applied to modern foldable designs that may be inserted through much smaller incisions with regard to the three-point fixation designs that have now been fabricated for small-incision procedures. Kelman Duet™ IOL, with PMMA haptics and a silicone optic (manufactured by Tekia Corp.). (Courtesy of Tekia Inc., Irvine, CA.)