Keywords Diabetic retinopathy;Streptozotocin;Blood-retina barrier;Evans blue;Calcium dobesilate;Multifocal electroretinography;traditional Chinese medicine DGH;

• 糖尿病性视网膜病变;链脲佐菌素;血-视网膜屏障;伊文思蓝;羟苯磺酸钙;多焦视网膜电图;中药部位复方DGH;