[Pars plana vitrectomy following accidental injection of depot steroids into the vitreous body].

The authors describe a case of accidental intraocular injection of depot steroids after treatment of a chalazion by an intralesional corticosteroid injection. The eye was treated by pars plana vitrectomy. Visual acuity improved postoperatively, ultimately attaining 1/16. As late complications, pathologic changes of the macula were observed, with macular pucker and optic nerve atrophy.