Fig. 22. Early single-piece PMMA IOL modified C-loop haptics exhibited too much resistance to compression proximal, which resulted in contact only of the midhaptic (similar to the J-loop they replaced) and noncontact with the peripheral haptic. If the capsular bag was small and the IOL relatively large, this could result in an ovaling of the capsulorrhexis. Modifications of the haptic configuration resulted in more even distribution of contact of the mid- and peripheral haptic. (Courtesy of James A. Davison, MD, Wolfe Eye Clinic, Marshalltown, IA.) |