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[摘要]
目的：探讨增殖性糖尿病视网膜病变(proliferative diabetic retinopathy，PDR)黄斑水肿的最佳治疗时间和方案。
方法：激光患者分3组，甲组：PDR无黄斑水肿(黄斑格栅样光凝组)； 乙组：PDR无黄斑水肿(未行黄斑格栅样光凝组)； 丙组：PDR合并黄斑水肿。甲、丙组患者均先行氪黄激光黄斑格子样光凝，然后将3组均行全视网膜光凝。比较治疗后3组患者视力、眼底造影和OCT。
结果：甲组患者治疗后黄斑厚度无改变，视力维持在较好水平； 乙组患者行全视网膜光凝后部分发生黄斑水肿，视力下降； 丙组患者治疗后黄斑水肿虽有改善，但视力维持在较差水平。
结论：PDR没有伴黄斑水肿时先行黄斑格栅样光凝后再行全视网膜光凝，能预防黄斑水肿的发生。
[Key word]
[Abstract]
AIM:To assess the therapeutic effects of krypton yellow laser for the prevention of diabetic macular edema in proliferative diabetic retinopathy(PDR).
METHODS:A total of 108 eyes of 58 patients with PDR were grouped into 3 groups. PDR without macular edema(macular treated by krypton yellow laser); PDR without macular edema(macular without treat); PDR with macular edema(macular treated by krypton yellow laser); all patients were treated by pan retinal photocoagulation(PRP); the postoperative vision, fundus fluorescein angiography and macular OCT were compared.
RESULTS:The group of PDR without macular edema(macular treated by krypton yellow laser)was better in vision than other groups.
CONCLUSION: Macular treated by krypton yellow laser before PRP can prevent macular edema.
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