Cortical blindness: diagnostic issues in sudden bilateral visual loss

Cortical blindness is defined as bilateral visual loss due to disruption of the visual pathways beyond the lateral geniculate body. Visual disturbance as a result of cortical lesion can manifest in different ways. Anton's syndrome is one of the manifestations of cortical blindness, which presents as denial of loss of vision associated with confabulation in the setting of obvious visual loss. This case illustrates the challenges of diagnosing cortical blindness in the emergency setting.