Diabetic Retinopathy

People with diabetes can experience day-to-day changes in their vision and/or visual functioning as a result of the disease. Diabetes can cause blood vessels that nourish the retina to develop tiny, abnormal branches that leak. This can interfere with vision and, over time, may severely damage the retina. Laser procedures and surgical treatments can reduce its progression, but regulating blood sugar is the most important step in treating diabetic retinopathy.

Diabetic Retinopathy - A scene as it might be viewed by a person with diabetic retinopathy, showing two people facing the viewer, blurred, with irregular patches of black obscuring the view.
Photo credit: National Eye Institute, National Institutes of Health

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