Several factors may increase the risk for retinopathy in a diabetic. Identifying and treating these factors can prevent, delay onset or slow its progression.

Factors affecting the onset and course of diabetic retinopathy:

(1) duration of the diabetes

(2) poor glycemic control (chronic hyperglycemia)

(3) nephropathy

(4) hypertension

(5) pregnancy in a Type 1 diabetic


Prevention includes:

(1) good glycemic control

(2) good control of blood pressure

(3) prevention of nephropathy

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