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Patients With Good Vision and Diabetic Macular Edema Involving the Center of the Macula: To Treat or Not to Treat?

Diabetic retinopathy is the leading cause of blindness and visual impairment in the workingage population in the United States and worldwide.1 Diabetic macular edema, a visionthreatening form of diabetic retinopathy, is the swelling or thickening of the retina at the macula, the structure that is responsible for the highest resolution of vision. Diabetic macular edema may occur in any stage of diabetic retinopathy, ranging from minimal diabetic retinopathy to severe proliferative diabetic retinopathy, which is the other form of vision-threatening diabetic retinopathy.