We report a case of rapid progression to proliferative diabetic after generalized edema occurrence in a non proliferative diabetic retinopathy patient.

A 48-year-old man visited our hospital with both eyes visual disturbance which occurred 1 week ago. He was diagnosed with moderate non proliferative diabetic retinopathy 5 months ago and there was no significant interval change 3 weeks ago. Date of visit, diffuse macular edema and neovascularization were observed in both eyes. Accompanying visual disturbance, he had generalized edema and 10 kg of weight gain. We thought it was not common diabetic macular edema, we held ophthalmic treatment such as an intravitreal anti-vascular endothelial growth factor (anti-VEGF) injection and requested medical treatment to the department of nephrology. Diagnosed with aggravation of left ventricle heart failure and diabetic nephropathy, he took diuretics and low salt diet for 10 days. After 10 days, his visual acuity improved and macular edema disappeared. Since then, he received intravitreal anti-VEGF injection and panretinal photocoagulation for proliferative diabetic retinopathy treatment. Nevertheless, he underwent pars plana vitrectomy due to vitreous hemorrhage in right eye.

We experienced a case of sudden diffuse macular edema and progression to proliferative diabetic retinopathy associated with generalized edema. We suggest that it is necessary to consider systemic changes in diabetic retinopathy.