Joseph J M, Louis S
Department of Clinical Neural Sciences, Rhode Island Hospital, Brown University School of Medicine, Providence, USA.
J Neuroophthalmol. 1995 Mar;15(1):39-42.
We report a case of transient ictal cortical blindness in a 63-year-old woman. We reviewed the literature of all seizure-induced bilateral blindness. After careful evaluation of 44 cases, it was evident that the cases could be categorized into three groups with different etiologies, duration of blindness, and probable visual prognosis. Transient cortical blindness may occur with unilateral focal seizure or with bilateral seizure activity of the primary generalized type. Seizure-induced blindness may be ictal or postictal (Todd's) phenomenon or a permanent consequence following status epilepticus. Its duration varies between less than 1 minute to 4 months, or can be permanent. Our case of cortical blindness is related to new onset occipital epilepsy from a left occipital focus, and adds to the evidence that cortical blindness occasionally occurs as an uncommon manifestation of seizure.
我们报告了一例63岁女性的短暂发作性皮质盲病例。我们回顾了所有癫痫发作导致双侧失明的文献。在对44例病例进行仔细评估后，很明显这些病例可分为三组，病因、失明持续时间和可能的视觉预后各不相同。短暂性皮质盲可能与单侧局灶性癫痫发作或原发性全身性类型的双侧癫痫活动有关。癫痫发作导致的失明可能是发作期或发作后期（托德麻痹）现象，也可能是癫痫持续状态后的永久性后果。其持续时间从不到1分钟到4个月不等，也可能是永久性的。我们的皮质盲病例与左侧枕叶病灶引起的新发枕叶癫痫有关，这进一步证明皮质盲偶尔作为癫痫的一种罕见表现出现。
