However patients with cortical blindness have unconscious visual functions called blindsight 6 7 possibly. In man and monkey absolute cortical blindness is caused by destruction of the optic radiations andor the primary visual cortex. Cortical Blindness Medlink Neurology Department of Anatomy School of Medicine University of Pennsylvania Philadelphia 19104-6058. . Cortical blindness may result from the destruction of ____. The term was coined by Lawrence Weiskrantz and his colleagues in. On optokinetic nystagmus in cortical blindness published information is even scarcer. We studied 12 patients with static cortical blindness to evaluate residual vision after destruction of area 17 and to assess the visual capacity of the subcortical second visual system in humans. Posterior reversible encephalopathy syndrome is characterized by headaches confusion cortical visual impairment and seizures. The ____ monitors all the informati...