Fig. 57. A case of scleral necrosis following retinal reattachment surgery. A. The entire anterior segment has become ischemic andfocally necrotic because of interruption of its blood supply though the rectus muscles during a retinal reattachment procedure. B. Material obtained from the sclera contains purulent exudate and necrotic scleral debris. (Hematoxylin-eosin stain; × 40.)