Canaliculorhinostomy following dacryocystectomy for removal of a benign fibrous histiocytoma of the lacrimal sac.

A 41-year-old woman had epiphora and a right lacrimal sac mass. A solid mass filling the entire lacrimal sac was found at surgery. After a month of testing and evaluation at the Armed Forces Institute of Pathology, the final diagnosis was benign fibrous histiocytoma. A dacryocystectomy was performed, and the entire tumor was removed. The area of the common canaliculus was then attached to a nasal mucosal flap, and the system was intubated with silicone tubing for 1 year. Two years after the tubing was removed, the epiphora had resolved and there was no recurrence of the tumor.

Assessment of visual-field changes before and after focal photocoagulation for clinically significant diabetic macular edema.

Visual fields were compared before and after focal photocoagulation for eyes with nonproliferative diabetic retinopathy and clinically significant diabetic macular edema. A total of 8 eyes was tested before treatment and 6-8 weeks after treatment using static automated visual fields (Octopus). The visual-field indices, mean defect (MD) and corrected loss variance, were employed as measures of retinal sensitivity. Our results show that focal photocoagulation (CLV) generally depressed sensitivity (increased MD) in the treated central 10 degrees field, whereas in the untreated control region (10-30 degrees) sensitivity generally remained stable. However, the whole-field indices indicated that overall the fields remained stable following focal photocoagulation treatment. These results suggest that although focal treatment produces local absolute visual-field defects, the effects are small relative to the global indices.