See Also: Visual Evoked Response (VER)(health)
Visual Evoked Potential (VEP)(health)
visual evoked potential(medicine)
evoked potentials, visual(medicine)
evoked response(medicine)
audiometry, evoked response(medicine)
evoked response audiometry(medicine)
Brain stem evoked response(health)
brainstem evoked response audiometry(medicine)
Evoked potentials(health)

Visual Evoked Response (VER) (health)


The VER is a test of the function of the visual pathways from the retina, along the optic nerve and optic tract to the early parts of the visual centers of the brain. Usually, EEG electrodes are placed on the head and the patient is required to view a flashing light and an alternating pattern (e.g., stripes or checks) on a TV. The VER is a diagnostic test for such things as Multiple Sclerosis, optic neuritis, optic neuropathies, cortical visual impairment and certain types of brain tumors. The pattern VER can also provide an objective estimate of a patient's visual acuity, even if the patient is nonverbal (e.g., too young, comatose or mentally impaired).