significant differences were observed between control and diabetic subjects without retinopathy ( scheffe f test , p less than 0.0001 ) , between control and retinopathic subjects ( scheffe f test , p less than 0.0001 ) , and between diabetic patients without retinopathy and those with early retinopathy ( scheffe f test , p less than 0.02 ) .
C0011884
diabetic
C0035309
retinopathy