**3. Diet, lifestyle and retinopathy**

Only two studies reported results for the association between macronutrients and type 1 diabetic retinopathy. Furthermore two studies reported an association between alcohol consumption and diabetic retinopathy and one study reported an association between physical activity and diabetic retinopathy. No studies were found examining the effect of glycaemic index/glycaemic load on retinopathy in type 1 diabetic patients.
