摘要
目的:探讨倍频Nd∶YAG532nm激光治疗视网膜分支静脉阻塞的疗效。方法:采用倍频Nd∶YAG532nm激光治疗视网膜分支静脉阻塞49例(49眼),灌注区采用II级光斑反应,无灌注区采用III级光斑反应,黄斑水肿格栅光凝,光凝后3～6mo复查FFA,对有渗漏或新生血管不退者,补充光凝,分析不同类型,不同发病时间激光治疗后视力变化及FFA情况。结果:激光治疗后,缺血型28眼中,视力提高者10眼(36%);不变16眼(57%);视力下降2眼(7%)。非缺血型21眼中,视力提高者18眼(86%),不变3眼(14%)。发病1～3mo与4mo以上激光治疗视力比较,P<0.05,有显著差异。FFA49眼中,43眼(88%)显示渗漏及毛细血管无灌注区消失。结论:激光治疗能促进水肿、出血、渗出的吸收,消灭无灌注区及新生血管,阻止并发症的发生,保护和提高视力,激光治疗早期优于晚期,视力缺血型比非缺血型预后差。
AIM： To explore the curative effect of Nd： YAG532nm laser photocoagulation in treating branch retinal vein occlusion （ BRVO）.
METHODS： Forty-nine BRVO cases （49 eyes） were treated by Nd：YAG532nm laser photocoagulation. Photo coagulation reaction was controlled at grade Ⅱ in non-perfusion area and at grade Ⅲ in perfusion area. After laser grid photocoagulation in the eyes with macular edema, FFA examination was performed within 3-6 months. For those with leakage or neovascularization was not decrease, further photocoagulation was done. The type, onset time, vision changes after laser treatment and FFA were analyzed.
RESULTS： After laser treatment in 28 ischemic-type eyes, visual acuity in 10 eyes （36%） were improved, 16 eyes （57%） not change, and 2 eyes （7%） decreased; in 21 ischemic eyes, visual acuity in 18 eyes （86%） were increased and 3 eyes （14%） unchanged. There was significant difference on the curative effect of laser treatment at 1-3 months and 4 months after onset （ P 〈 0. 05）. After FFA examination in all 49 eyes, 43 eyes （88%） showed a disappearance of leakage and neovascularization without perfusion area.
CONCLUSION ： Laser treatment can promote absorption of edema, hemorrhage and exudation, eliminate non-perfusion area and neovascularization, avoid of complications, prevent and improve visual acuity. The earlier the treatment is done, the better curative effect will get. Visual prognosis in non-ischemic eyes is better than that in ischemic eves.
出处
《国际眼科杂志》
CAS
2008年第11期2330-2331,共2页
International Eye Science
