Proliferation of fibroblast-like cells on failing intraocular lenses.

The process of reactivation and multifocal proliferation of fibroblast-like cells near giant cells on the surface of a well-developed cellular membrane covering a Choyce anterior chamber lens implant is described histologically in an eye that had a good surgical result at first and later developed bullous keratopathy, corneal ulceration, and final rupture three years following surgery. This is compared with another eye with a late stage of scar-formation surrounding a Choyce implant two and a half years after implantation with severe complications. Details of lens implant cytology are demonstrated and discussed.