CAJ | 학술논문

目的探讨激光周边虹膜成形术治疗闭角青光眼的中远期效果.方法对UBM显示虹膜根贴靠小梁网的早期闭角青光眼55只眼,实施倍频Nd:YAG(532nm)激光周边虹膜成形术.激光治疗参数:功率300～500mW,暴光时间0.2～0.3s,光斑直径500μm,距虹膜根部500μm在360°范围做24～30个光凝点.术后定期复查视力、眼压、前房角,记录用药指数,并做UBM.结果激光术后随访(11-39)月(18.6±6.2)月.与术前相比,术后眼压下降均非常显著(F=45.454,P=0.000),用药次数显著减少(F=48.715,P=0.000),AOD500增大亦非常显著(F=46.567,P=0.000).术后1、2、3年房角开放度回退到术前情况的眼数分别约为12%,26%,55%(X2=11.772,P=0.003).结论 LPI术后随时间的推移,闭角青光跟前房角开放度逐渐回缩,降眼压效果也逐渐减弱.
목적 탐토격광주변홍막성형술치료폐각청광안적중원기효과.방법 대UBM현시홍막근첩고소량망적조기폐각청광안55지안,실시배빈Nd:YAG(532nm)격광주변홍막성형술.격광치료삼수:공솔300～500mW,폭광시간0.2～0.3s,광반직경500μm,거홍막근부500μm재360°범위주24～30개광응점.술후정기복사시력、안압、전방각,기록용약지수,병주UBM.결과 격광술후수방(11-39)월(18.6±6.2)월.여술전상비,술후안압하강균비상현저(F=45.454,P=0.000),용약차수현저감소(F=48.715,P=0.000),AOD500증대역비상현저(F=46.567,P=0.000).술후1、2、3년방각개방도회퇴도술전정황적안수분별약위12%,26%,55%(X2=11.772,P=0.003).결론 LPI술후수시간적추이,폐각청광근전방각개방도축점회축,강안압효과야축점감약.
Objective To explore the long-term outcome oflaser peripheral iridoplasty(LPI)in the management of angle-closure glaucoma.Methods A total of 55 LPI procedures were performed on the consecutive 55 eyes with early angle-closure glaucoma and their iris root closed to trabecular meshwork showed by ullrasound biomicroscopy(UBM).A double-frequency Nd:YAG was used in LPI and laser parameter was 300～500 mW power,0.2～0.3 second duration,500μm spot size,24～30 burns over 360 degree.Patients were regularly assessed for postoperative visual acuity,intraocular pressure,medication score,gonioscopy,and UBM.Results The mean follow-up was 18.6±6.2 months(ranged 11～39 months).Comparing with preoperation,postoperative average IOP decreased significantly(F=45.454,P=0.000),medication score reduced significantly(F=48.715,P=0.000),AOD500 increased significantly(F=-46.567,P=0.000).Angle open degree returned to the baseline was 12%,26%,55%,respectively at 1,2,3 year postoperatively(X2=11.772,P=0.003).Conclusions With elapse of time after LPI,angle open degree of angle-closure glaucoma returned to baseline gradualty,and effect of depressing IOP weakened.