Visual Evoked Potential
Visual evoked potential (VEP) test diagnoses problems within the optic nerve and is most often used to diagnose multiple sclerosis, as optic nerve damage is one of the earliest signs of the disorder. This test is performed through sensory stimulation of the patient’s visual field, with responses recorded through electroencephalography.
During this test, electrodes are placed on the scalp as the patients watches patterns appear on a screen. The electrical responses to this visual stimulation is then recorded and analyzed in order to diagnose.
Indications for use:
- Double vision
- Blurred vision
- Loss of vision
- Eye and head injuries
- Weakness in the eyes, arms or legs