After 15 years of having diabetes, 98 percent of those with type 1 diabetes and 78 percent of those with type 2 have some degree of retinal damage. Two kinds of diabetic retinopathy have the potential to diminish vision: In non proliferative retinopathy, blood vessels in the retina deteriorate. Therefore, oxygen levels are closely monitored and adjusted. The new vessels are also often accompanied by scar tissue that may cause the retina to wrinkle or detach. The lei is conducting and supporting research that seeks better ways to detect, treat, and prevent vision loss in people with diabetes.

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