氩激光治疗视网膜中央静脉阻塞的时机探讨

Treatment opportunity for central retinal vein occlusion by Argon laser photocoagulation

目的：探讨氩激光治疗视网膜中央静脉阻塞（central retinal vein occlusion，CRV0）的时机。方法：根据CRVO发病后至接受激光治疗的时间不同分为3组，A组为CRVO发生后4～8wk共23例23眼，B组为CRVO发生后12～16wk共9例9眼，C组为CRVO发生20wk以后共6例6眼。激光治疗方法分为黄斑区格栅样光凝，局灶性视网膜光凝及全视网膜光凝。结果：2a后A组视力〉0．3者为17眼占74％；B组视力〉0．3者为4眼占44％；C组视力〉0．3者仅1眼占17％，2例发展成为新生血管性青光眼（NVG）。结论：CRVO发生后早期光凝治疗对视力的恢复有较好的效果，晚期光凝治疗主要是预防并发症的发生。

AIM. To explore the treatment opportunity for central retinal vein occlusion （CRVO） by Argon laser photocoagulation. METHODS： According to the time from onset of CRVO that was treated by Argon laser photocoagulation, thirtyeight eyes were divided into three groups. Twenty-three eyes in group A were treated within 4-8 weeks; 9 eyes in group B were treated at 12-16 weeks and 6 eyes in group C were treated 20 weeks after the onset of CRVO. Three patterns of photocoagulation by Argon laser were performed, local, panretinal photocoagulation or macular lattice photocoagulation according to the fundus fluorescein angiography. RESULTS： Two-year follow-up showed that visual acuity 〉0.3 in 17 eyes （74%） in group A, 4 eyes （44%） in group B and only 1 eye （17%） in group C. Moreover, 2 eyes in group C developed into neovascular glaucoma （NVG）. CONCLUSION： Photocoagulation is beneficial to improve the outcome of visual acuity in early-stage CRVO while merely to prevent the complication in late-stage.