倍频532激光治疗视盘新生血管型糖尿病视网膜病变观察

目的探讨倍频532激光治疗视盘新生血管型糖尿病视网膜病变（DR）的疗效。方法对67例（109只眼）视盘新生血管型DR患者行超全视网膜光凝。激光治疗后1、3、6、12个月行荧光素眼底血管造影（FFA）检查,新生血管未消退者追加光凝。随访24～36个月（平均32.8个月）。结果光凝术后视力提高者19只眼（17.43%）,视力不变者63只眼（57.80%）,视力下降者27只眼（24.77%）。经一次或多次追加光凝,最终71只眼（65.14%）新生血管消退,14只眼（12.84%）新生血管变细变少,24只眼（22.02%）新生血管无变化或加重。激光治疗量为2650（1600～5450）点。结论倍频532激光治疗视盘新生血管型DR安全有效。

Therapeutic effect of 532nm frequency-doubled laser photocoagulation on proliferative diabetic retinopathy with disc neovascularization

Objective To investigate the effect of 532 nm frequency-doubled laser photocoagulation on proliferative diabetic retinopathy（PDR） with disc neovascularization（NVD）.Methods 109 eyes of 67 patients with NVD were treated with extra panretinal photocoagulation by 532nm frequency-doubled laser.The fundus fluorescein angiography was performed at1、3、6、12 months after the treatment.The further photocoagulation was complemented for the patients who remained newvessels.The follow-up period was 24 ～ 36 months（mean 32.8 months）.Results After extra panretinal photocoagulation,vision was improved in 19 eyes（17.43%）,unchanged in 63 eyes（57.80%） and decreased in 27 eyes（24.77%）.After one or more additional photocoagulation,neovascularization entirely regressed in 71 eyes（65.14%）,partly regressed in 14 eyes（12.84%） and unchanged or aggravated in 24 eyes（22.02%）.The number of laser was 2650（1600 ～ 5450） points.Conclusion The treatment of 532nm frequency-doubled laser photocoagulation on proliferative diabetic retinopathy（PDR） with disc neovascularization is a safe and effective.