Cortical Blindness as a Manifestation of Basilar Artery Occlusion

Abstract

Three patients with cortical blindness resultingfrom simultaneous ischemia of both occipital lobes are presented. In all cases there was clinical and/or angiographic evidence of basilar artery occlusion. Visual agnosia was present in all three patients. The cortical blindness was completely transient in one case, partially transient in the second, and permanent in the third. The pathogenesis of the simultaneous loss of both visual half-fields in basilar artery occlusion is discussed and compared with the bilateral homonymous hemianopia resulting from successive, bilateral occlusions within the internal carotid arterial systems.

Cortical blindness as a rare presentation of cerebral venous thrombosis

“…CVT comprises 0.5–1% of all strokes [2]. First described in 1825, CVT occurs much less frequently than arterial thrombosis but can present in an atypical fashion leading to misdiagnosis or delayed diagnosis [1].…”

Prognostic Value of Visual Evoked Potentials in Occipital Blindness following Basilar Artery Occlusion

“…As the case histories of these patients were described in detail elsewhere [21], only the pertinent clinical data will be given forthwith.…”

“…Since 1957, when 58 cases of occipital blindness of vascular origin were reviewed [26], additional cases have been reported [11,18,20,21,25,27]. Most of these patients remained blind; however, a few regained partial or complete recovery of visual fields and acuity.…”