• Aris N Kollias and Michael W Ulbig.
• Augenklinik der Ludwig-Maximilians-Universität München, Germany.
• Dtsch Arztebl Int. 2010 Feb 1; 107 (5): 758475-83; quiz 84.

BackgroundDiabetic retinopathy is a microangiopathy of the retina from which nearly all persons with diabetes eventually suffer. Two of its complications threaten the patient's vision: diabetic macular edema and proliferative diabetic retinopathy.MethodsSelective literature review, based on national and international guidelines and a literature search from 1981 onward.ResultsDiabetic retinopathy is subdivided into non-proliferative and proliferative retinopathy. Macular edema can arise at any stage of the disease and threatens visual acuity. The main risk factors for the development and progression of diabetic retinopathy are long duration of diabetes and poor control of blood sugar and arterial blood pressure. Laser photocoagulation is an evidence-based treatment for proliferative retinopathy and macular edema. Vitreous surgery is indicated in cases of worsening vision due to a non-clearing vitreous hemorrhage or tractional retinal detachment. The current options for medical treatment involve the intravitreous injection of glucocorticosteroids or of a VEGF antagonist; both of these options are "off label" at present.ConclusionDiabetic retinopathy is the leading cause of blindness among persons of working age in the industrialized world. Regular ophthalmological examinations, timely laser therapy depending on the stage of the disease, and close interdisciplinary cooperation are essential to prevent loss of vision.

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