ObjectiveTo estimate the clinical significances of grid photocoagulation in treatment of diffuse macular edema caused by diabetic retinopathy or by central vein occlusion.

• 目的评价格栅样光凝治疗糖尿病性视网膜病变和视网膜中央静脉阻塞合并弥漫性黄斑水肿的临床作用。