Hayreh S S, Zimmerman M B, Podhajsky P
Department of Ophthalmology, College of Medicine, University of Iowa, Iowa City.
Am J Ophthalmol. 1994 Apr 15;117(4):429-41. doi: 10.1016/s0002-9394(14)70001-7.
We analyzed data on 1,108 patients (1,229 eyes) with various types of retinal vein occlusion. Retinal vein occlusion was classified into six distinct clinical types: (I) nonischemic and (II) ischemic central retinal vein occlusion, (III) nonischemic and (IV) ischemic hemicentral retinal vein occlusion, and (V) major and (VI) macular branch retinal vein occlusion. Retinal vein occlusion occurred more often in men than women. The age range of patients was between 14 and 92 years, with 570 of 1,108 patients (51%) 65 years or older; however, 99 of 620 (16%), 15 of 154 (10%), and 17 of 375 (5%) of the patients with central, hemicentral, and branch retinal vein occlusion, respectively, were younger than 45 years. The cumulative probability of developing a second episode of the same or a different type of retinal vein occlusion in the same eye was 0.9% within two years and 2.5% within four years, and in the fellow eye was 7.7% and 11.9%, respectively. The cumulative probability of conversion of nonischemic to ischemic central retinal vein occlusion at six months and 18 months was 13.2% and 18.6%, respectively, in persons 65 years of age or older and 6.7% and 8.1%, respectively, in persons 45 to 64 years of age.
我们分析了1108例（1229只眼）不同类型视网膜静脉阻塞患者的数据。视网膜静脉阻塞分为六种不同的临床类型：（I）非缺血性和（II）缺血性中央视网膜静脉阻塞，（III）非缺血性和（IV）缺血性半侧中央视网膜静脉阻塞，以及（V）主要和（VI）黄斑分支视网膜静脉阻塞。视网膜静脉阻塞在男性中比女性更常见。患者年龄范围在14至92岁之间，1108例患者中有570例（51%）年龄在65岁及以上；然而，中央、半侧中央和分支视网膜静脉阻塞患者中，分别有620例中的99例（16%）、154例中的15例（10%）和375例中的17例（5%）年龄小于45岁。同一只眼发生同一类型或不同类型视网膜静脉阻塞第二次发作的累积概率在两年内为0.9%，四年内为2.5%，而对侧眼分别为7.7%和11.9%。65岁及以上人群在6个月和18个月时非缺血性中央视网膜静脉阻塞转变为缺血性的累积概率分别为13.2%和18.6%，45至64岁人群分别为6.7%和8.1%。
