目的:探讨OCT对无症状的不完全玻璃体后脱离的检出率。方法:对经检查明确诊断1眼玻璃体后脱离病例49例98眼,及正常体检自愿者93例186眼,采用Zeiss公司生产的CirrusHD-OCT进行双眼检查。结果:在1眼完全玻璃体后脱离的49例患者中,另1眼发生不同程度的玻璃体不完全后脱离24眼,发生率为48.9%,正常体检自愿者93例186眼,发生玻璃体不完全后脱离63眼,发生率为33.9%,所有玻璃体不完全后脱离者均无眼前黑影等症状。结论:OCT对玻璃体不完全后脱离的检出具有非常好的特异性和敏感性,可作为玻璃体后脱离的必需检查手段。

·AIM:To investigate diagnostic value of optical coherence tomography(OCT)in asy-mptomatic posterior vitreous detachment(PVD).·METHODS:Ninety-eight eyes of 49 cases which were examined and identified that one eye of each patient had PVD and 186 eyes of 93 cases from normal volunteers were checked with Cirrus HD-OCT made by Zeiss.·RESULTS:Of the 49 cases which had one eye of PVD,24 of the other eyes had different degrees of incomplete PVD,accounting for 48.9%.For the 93 volunteer cases,63 eyes of the 186 eyes were incomplete PVD,occounting of 33.9%,No black shadow symptom occurred for all the patients who had incomplete PVD.·CONCLUSION:OCT has a very good detection specifi-city and sensitivity for PVD,therefore it can be used us the required examination.·

R776.4