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Treatment with norrin helps maintain healthy blood vessels and preserve vision in diabetic rats — in Medical Xpress
Millions of people in the U.S. are affected by diabetic retinopathy, a complication of diabetes that affects the eyes. The condition is caused by damage to the blood vessels in the retina, the light-sensitive tissue at the back of the eye. At first, diabetic retinopathy might not cause any symptoms, or the problems might be mild.