Visual Evoked Potentials (VEPs) are used to test the integrity of the auditory and visual system. A flashing light stimulates each eye. If a patient does not respond to the light, appropriate measures can be taken to protect the patient's vision.
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Posterior fossa craniotomy, especially cerebellar-pontine angle (CPA) tumors
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Basilar Artery Aneurysm
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Temporal craniotomy for evaluation of lateral cerebral cortex
