In the March issue of the Archives, Drs FitzSimon and Johnson1 reported a case in which exfoliative material appeared on an intraocular lens implant over a period of years after extracapsular cataract extraction and intraocular lens insertion. They commented that the pattern of deposition seen in their patient was characteristic of that seen on the crystalline lens. I believe that the pattern of deposition seen in their figure is the inverse of that seen in naturally occurring exfoliation. Specifically, there is usually less exfoliative material in the area underlying the iris excursion with heavier deposition in the pupillary aperture.
Harris DJ. Exfoliation Material on Intraocular Lens Implants. Arch Ophthalmol. 1996;114(11):1429. doi:10.1001/archopht.1996.01100140629027