Conclusion:The damage were mainly in the microvilli of plasmic membrane of basis of retina pigment epithelium in DR rats,but there were no damage to the choroid membrane retina barrier.

• 结论:糖网病大鼠视网膜色素上皮细胞的损害主要表现于微绒毛、质膜内褶及细胞器的损害,并无脉络膜与视网膜之间屏障功能的损害。