The role of the crystalline lens epithelium in postpseudophakos membrane formation.

Pupillary membranes were experimentally produced in rabbits and correlated with biopsy specimens from human eyes which had undergone extracapsular cataract extraction. These fibrous membranes were derived from proliferation of lens epithelial cells. Wider anterior capsulectomies or barrier devices attached to intraocular lenses may reduce opacification of intact posterior capsules.