视网膜中央静脉阻塞眼前段新生血管的临床观察

Clinical study of anterior segment neovascularization caused by central retinal vein occlusion

①目的观察视网膜中央静脉阻塞（CRVO）眼前段新生血管的发生情况,统计房角新生血管的发生率,为今后临床上是否应对缺血型CRVO行前房角镜检查提供理论依据。②方法对缺血型CRVO患者,在裂隙灯显微镜下每2周检查1次虹膜和前房角,详细记录新生血管的发生情况。③结果 98例患者（98只眼）中缺血型32例（32.65%）。缺血型CRVO患者中18例（56.25%）发生了眼前段的新生血管。发生时间为2.5~6个月,平均3.4个月。其中虹膜新生血管者10例（55.55%）;虹膜和房角同时新生血管者5例（27.78%）;房角新生血管者3例（16.67%）。④结论部分缺血型CRVO眼前段新生血管可以首先表现为房角新生血管,应加强前房角镜检查以防漏诊。

Objective To observe the anterior segment neovascularization of central retinal vein occlusion（CRVO） and statistics the incidence of angle neovascularization（ANV）,though which to provide theory evidence if we need to pay sufficient attention to gonioscopy for ischemic CRVO patients.Methods The iris and anterior chamber angle of every ischemic CRVO patient were examined carefully under slit lamp every two weeks,and record the occurrence of NV.Results Among the 98 CRVO patients,there were 32 ischemic patients.Among 32 ischemic CRVO,18（56.25%） occurred anterior segment NV.The time of occurrence was 2.5~6 months,mean 3.4 months.Among 18 anterior segment NV,10（55.55%） occurred firstly from iris,3（16.67%） occurred firstly from angle,and 5（27.78%） occurred simultaneously from iris and angle.Conclusion Some of the anterior segment NV caused by ischemic CRVO may first occur from angle only,so we should examine these patients all with gonioscopy if we didn＇t want them be missed diagnosis.