News Does Renin-Angiotensin System Blockade Have a Role in Preventing Diabetic Retinopathy? A Clinical Review by Medscape • 2011/02/14 • 0 Comments Recent studies suggest that renin-angiotensin blockade can slow the progression of--and possibly prevent--diabetic retinopathy, providing hope for this greatly feared complication of diabetes. International Journal of Clinical Practice Full Story →