目的：分析577nm微脉冲激光(SML)光凝联合玻璃体腔注射康柏西普治疗增殖性糖尿病视网膜病变(PDR)患者玻璃体切除术后发生糖尿病性黄斑水肿(DME)的临床效果。

方法：回顾性分析2019-01/2021-06就诊于我院经玻璃体切除治疗的PDR患者，术后发生DME患者29例30眼。根据治疗方式不同分为两组，单纯注射组患者14例14眼行玻璃体腔注射康柏西普，联合治疗组患者15例16眼行黄斑区577nm微脉冲激光光凝联合玻璃体腔注射康柏西普。比较两组患者治疗前及治疗6、12mo最佳矫正视力(BCVA)、黄斑中心凹视网膜厚度(CMT)的变化，以及治疗前、治疗12mo多焦视网膜电流图(mfERG)的变化。

结果：两组患者治疗6、12mo BCVA(LogMAR)均较术前改善，CMT均较术前下降(均P<0.001)。单纯注射组治疗前及治疗6、12mo BCVA(LogMAR)、CMT与联合治疗组比较均无差异(均P>0.05)。治疗12mo单纯注射组较联合治疗组振幅略低(23.02±3.13 vs 26.50±3.33μV/deg²)，潜伏期延长(38.75±1.62 vs 34.21±3.06ms)(均P≤0.001)。随访12mo，单纯注射组注射康柏西普8.14±1.46次，联合治疗组5.05±1.51次(P<0.05)。

结论：577nm微脉冲激光光凝联合玻璃体腔注射康柏西普可有效缓解玻璃体切除术后DME患者的黄斑水肿、提高BCVA，并能改善黄斑区视功能，有效减少康柏西普注射次数。

METHODS:A retrospective analysis was performed on 29 cases(30 eyes)of PDR patients who had DME after vitrectomy in our hospital from January 2019 to June 2021. They were divided into two groups according to different treatment methods: 14 cases(14 eyes)in the single injection group received intravitreal injection of Conbercept, and 15 cases(16 eyes)in the combined treatment group received 577nm SML photocoagulation in the macular area combined with intravitreal injection of Conbercept. The changes in best corrected visual acuity(BCVA)and central macular thickness(CMT)before and at 6 and 12mo after treatment, as well as the changes of multifocal electroretinogram(mfERG)before and at 12mo after treatment were compared between the two groups.

RESULTS: The BCVA(LogMAR)of patients in both groups improved and CMT decreased after treatment for 6 and 12mo(all P<0.001). There were no significant differences in BCVA(LogMAR)and CMT before treatment and 6mo, 12mo after treatment between single injection group and combined treatment group(all P>0.05). Compared with the combined treatment group, the amplitude was slightly lower(23.02±3.13 vs. 26.50±3.33 μV/deg²)and the latency time was prolonged(38.75±1.62 vs. 34.21±3.06ms)in single injection group at 12mo(all P≤0.001). The average injection times in single injection group was 8.14±1.46, and 5.05±1.51 in combined treatment group at 12mo after treatment(P<0.05).

CONCLUSION: 577nm SML photocoagulation combined with intravitreal injection of conbercept can effectively relieve macular edema, improve BCVA and visual function of macular area and reduce the injection times of conbercept for DME patients.