Tanaka R, Miyasaka Y, Yada K, Mukuno K
Department of Neurosurgery, Kitasato University School of Medicine, Kanagawa, Japan.
Neurosurgery. 1992 Oct;31(4):787-90; discussion 790-1. doi: 10.1227/00006123-199210000-00028.
Cases of complete bilateral homonymous hemianopsia with sparing of central vision that are caused by bilateral tentorial herniation are extremely rare. We describe one such case resulting from severe head trauma, the first to be reported in which magnetic resonance images showed clear evidence of the responsible lesion. The causes of bilateral homonymous hemianopsia with sparing of central vision and the possible mechanisms whereby macular sparing may arise are discussed.
由双侧小脑幕切迹疝引起的伴有中心视力保留的完全性双侧同向性偏盲病例极为罕见。我们描述了一例由严重头部外伤导致的此类病例，这是首例报告的磁共振成像显示有明确责任病变证据的病例。本文还讨论了伴有中心视力保留的双侧同向性偏盲的病因以及黄斑保留可能出现的机制。
