需用神经外科处理的单侧视神经病变经常由于诊断困难,而延误治疗。当不合并眼外肌麻痹或眼球不突出时,诊断更困难。这类病人常有:(1)单眼视力、视野丧失,(2)无眼外肌麻痹,眼球不突出,(3)无外伤病史,(4)诊断要到手术时方能确立。病因:观察的18例中:5例垂体瘤,6例脑膜 Unilateral optic neuropathy that requires neurosurgery is often delayed due to diagnostic difficulties. Diagnosing is more difficult when no extraocular muscle paralysis is involved or when the eyeball is not prominent. Such patients often have: (1) monocular vision, loss of vision, (2) no extraocular muscle paralysis, no prominent eyeballs, (3) no history of trauma, (4) diagnosis can only be established when the surgery. Etiology: 18 cases observed: 5 cases of pituitary tumors, 6 cases of meninges