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目的：探讨中青年性视网膜中央静脉阻塞的发病病因。方法：回顾性分析６３例（６４只眼）＜５０岁视网膜中央静脉阻塞患者的全部化验结果及全身检查。结果：发现８５．９３％（５５／６４）的患者血液粘度增高。结论：血液粘度增高可能是中青年性中央静脉阻塞的主要致病因素。
Objective: To explore the etiology of middle-aged retinal central vein occlusion. Methods: All the results of laboratory tests and the whole body examination of 63 patients (64 eyes) with central retinal vein occlusion <50 years were retrospectively analyzed. Results: 85.93% (55/64) of the patients were found to have increased blood viscosity. Conclusion: Increased blood viscosity may be the main causative factor of middle-aged central venous obstruction.