Progression of diabetic retinopathy after endophthalmitis

Objective: To determine the effect of endophthalmitis on diabetic retinopathy, Design: Noncomparative case series. Methods: The records of all consecutive patients with endophthalmitis treated between 1992 and 1997 at the Medical College of Wisconsin were retrospectively reviewed. Those patients with diabetes mellitus were analyzed. Participants: From 77 reviewed records, 11 patients (12 eyes; 14%) were identified as diabetics with endophthalmitis and were studied, Main Outcome Measures: Stage of diabetic retinopathy, time to retinopathy progression, and visual acuity, Results: Mean patient age was 68 years, and mean duration of diabetes was 11.7 years. Mean patient follow-up was 17 months. Of the six Gases without evidence of retinopathy before the endophthalmitis, none went on to develop retinopathy, Of six eyes with pre-existing nonproliferative retinopathy, four showed evidence of progression within 6 months of the infection. Three developed severe proliferative disease and macular edema, and one developed severe nonproliferative disease. More patients without pre-existing retinopathy achieved a final Visual acuity of 20/40 or greater, Conclusions: Patients with pre-existing diabetic retinopathy may be at increased risk for vapid retinopathy progression and a poorer visual outcome after endophthalmitis, These results support the concept that inflammation may exacerbate diabetic retinopathy.