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Siderosis bulbi induced by intraocular lens implantation.

A 43-year-old man had a silent intraocular foreign body at the ciliary body that was composed of iron. Siderosis bulbi was observed after an extracapsular cataract extraction with intraocular lens implantation was performed. The mechanical forces applied during the surgery might have been responsible for liberating the ferrous ion into the globe.