高度近视眼继发视网膜劈裂与玻璃体—视网膜牵引的关系(英文)

Vitreoretinal traction and retinoschisis in highly myopic eyes

目的 观察高度近视眼继发视网膜劈裂在OCT上的特征,分析其发生的原因。方法 回顾2000-10/2003-03因中心视力减退在我院进行过OCT检查的高度近视26例43眼,对其中存在继发性视网膜劈裂的12例18眼(42%)的OCT图像进行分析。结果 高度近视眼继发视网膜劈裂以外层劈裂为主,多发生在眼底后极部(16/18),多数(15/18)可见玻璃体牵引视网膜征象。所有黄斑区尚未被视网膜劈裂累及眼的黄斑中心凹处的视网膜感觉层较同龄、同性别的正常人薄,有统计学意义(P=0.0052)。结论 高度近视眼继发视网膜劈裂并不少见,它与玻璃体牵引及视网膜本身的退行性变密切相关。

Aim To analyze the possible causes of retinoschisis in highly myopic eyes by evaluating its optical coherence tomographic characteristics. Methods A retrospective study was made of 43 eyes of 26 patients, who were admitted into our hospital from October 2000 to March 2003 due to complaints of vision decrease and were examined using optical coherence tomography (OCT). Among them, hospital records of 18 eyes (12 patients) (42%) with retinoschisis were analyzed. Results Retinoschisis in highly myopic eyes occurred mainly in the outer layer of the neurosensory retina in the posterior pole. Vitreoretinal traction was found in 15 out of 18 eyes. The neu-rosensory retinal thickness at the fovea which had not been involved by retinoschisis was significandy smaller than that of normal control (P=0.0052 ). Conclusion Retinoschisis is not uncommon in highly myopic eyes and is associated with vitreoretinal traction and the pre-existing retinal degeneration.