Soemmering ring formation and the AcrySof MA60BM (Alcon Laboratories). This AcrySof 3 piece hydrophobic acrylic IOL was the first foldable hydrophobic acrylic IOL available in the United States. It had a squared optic edge. a. The cortical clean-up was meticulous and, quite likely, very little time passed between IOL implantation and specimen collection as evidenced by the absence of regenerated cortex. b. Nearly complete cortical regeneration is observed surrounding the optic, likely taking years to develop (compare to Figure 9). The interaction of material and design within the capsule resulted in an effective barrier to lens epithelial cell migration. Despite the florid regenerated cortex present at the optic edge, posterior capsule opacification was averted for this patient.