Salinas-Garcia R F, Smith J L
Surg Neurol. 1978 Sep;10(3):187-94.
The visual fields of 100 patients referred for neuro-ophthalmologic examination were reviewed; eight cases had binasal visual field defects. Most clinicians have suspected an intracranial cause for such field defects since the classic report of Cushing and Walker in 1912. However, in this study, the cause for the binasal hemianopia was found to be ischemic optic neuropathy in two patients, and one case each of optic nerve drusen, glaucoma, congenital optic nerve pits, and retinitis pigmentosa sine pigmento. Thus 75% of the cases had an intraocular cause for the binasal hemianopia. Two patients had congenital hydrocephalus, and an intracranial basis was thus noted in 25% of these cases. The neurosurgeon should realize that the patient with binasal field defects is much more likely to have an ocular cause than an intracranial one for his problem.
回顾了100例因神经眼科检查而转诊患者的视野情况；其中8例存在双鼻侧视野缺损。自1912年库欣（Cushing）和沃克（Walker）的经典报告以来，大多数临床医生一直怀疑此类视野缺损是由颅内原因所致。然而，在本研究中，发现2例双鼻侧偏盲的病因是缺血性视神经病变，视神经乳头 drusen、青光眼、先天性视神经凹陷和无色素性视网膜色素变性各1例。因此，75%的病例双鼻侧偏盲的病因是眼内因素。2例患者患有先天性脑积水，因此这些病例中有25%存在颅内因素。神经外科医生应认识到，双鼻侧视野缺损的患者其问题由眼部原因导致的可能性远大于颅内原因。
