目的：探讨胰岛素治疗与2型糖尿病视网膜病变的关系。

方法：收集2016-06/2018-01于我院内分泌科住院的2型糖尿病患者415例830眼。根据不同降糖用药、眼底造影检查结果、胰岛素用量分别进行分组，收集各组患者一般资料，采集清晨空腹静脉血，测量空腹血糖、糖化血红蛋白(HbA1c)、空腹C肽等指标。分析不同用药和不同视网膜病变组间患者空腹血糖、HbA1c、空腹C肽的变化以及胰岛素用量和糖尿病视网膜病变的相关关系。

结果：不同用药组间糖尿病视网膜病变程度不同，不同视网膜病变组间患者的胰岛素用量不同(P<0.05)，2型糖尿病患者并发视网膜病变的胰岛素用量切点值为37.5U/d。胰岛素用量>37.5U/d组中2型糖尿病患者的视网膜病变较多，且胰岛素用量与2型糖尿病患者视网膜病变程度呈正相关。

结论：不同降糖治疗对糖尿病视网膜病变的影响不同，使用胰岛素治疗与2型糖尿病性视网膜病变的发病及严重程度呈正相关。

METHODS: We collected data from 415 patients with type 2 diabetes who were treated at the Yantai Yuhuangding Hospital endocrinology unit from 2016 to 2018. The patients were divided into 6 groups based on the therapies they received and were divided into 3 groups based on the results of fundus angiography. All patients' general information were collected. Then we gathered the morning fasting venous blood and measured the fasting blood glucose, glycosylated hemoglobin, C peptide and analyzed the differences in fasting blood glucose, HbA1c and fasting c-peptide in patients with different drugs and retinopathy groups and the relationship between insulin dosage and the severity of DR.

RESULTS: There were differences in the proportion of diabetic retinopathy among different treatment groups, and the dosage of insulin was different among different DR groups. The cut point affect the occurrence of retinopathy of insulin is 35.7 U/d, 4.5 years.

CONCLUSION: The effect of different hypoglycemic regimens on diabetic retinopathy were different. Insulin treatment is positively correlated with the incidence and severity of type 2 diabetic retinopathy.