Exfoliation syndrome after cataract extraction.

The authors describe three cases in which exfoliative material was noted on the posterior surface of intraocular lenses, years after extracapsular cataract extraction and lens implantation in eyes where no exfoliative material was seen before the operation. All three cases had an open posterior capsule before the exfoliative material was first seen. This phenomenon has not been previously presented in the literature.