Cortical blindness

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Cortical blindess is the total loss of vision in a normal-appearing eye caused by damage to the visual area in the brain's occipital cortex [1]. Bilateral lesions of the primary visual cortex may cause cortical blindness. Patients have no vision but the response of the pupil to light is intact (as the reflex does not involve cortex). Fundoscopy is normal. Cortical blindness can be associated with visual hallucinations, denial of visual loss (Anton syndrome), and the ability to perceive moving but not static objects (Riddoch phenomenon).