Abstract
目的 探讨视网膜中央静脉阻塞(central retinal vein occlusion,CRVO)所致黄斑损害的光学相干断层成像(optical coherence tomography,OCT)的图像特征与眼底荧光血管造影(fundus fluorescein angiography,FFA)的关系.设计回顾性研究.研究对象33例33眼的视网膜中央静脉阻塞患者.方法对33例33眼的视网膜中央静脉阻塞患者进行OCT和FFA检查.采用OCT对黄斑水肿的高度进行了测量.结果4眼OCT表现为弥漫黄斑水肿,其FFA表现为黄斑拱环毛细血管轻度扩张渗漏;21眼OCT表现为黄斑囊样水肿,其FFA表现为13眼为典型的花瓣样黄斑囊样水肿,另8眼毛细血管扩张,拱环结构破坏,荧光素渗漏显著;3眼OCT表现为神经上皮脱离伴有黄斑水肿,其FFA表现为毛细血管扩张,荧光素渗漏,4眼OCT表现为视网膜内和/或视网膜下大量出血,其FFA检查表现为黄斑拱环破坏,结构不清,有出血遮挡;1眼OCT黄斑中心凹形态大致正常,其FFA检查表现为黄斑区荧光素轻度渗漏.结论OCT对于黄斑组织结构改变的敏感性优于FFA,并且能精确地分析和追踪观察黄斑水肿的病程演变.而FFA在OCT表现正常时,仍能反映出色素上皮屏障的破坏.因此,OCT和FFA两种检查各有优缺点,同时采用可更加全面地了解CRVO所致黄斑损害情况。
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