VEP - Visual Evoked Potential

It is a non-invasive test that measures the electric signal produced at the visual cortex due to visual stimuli. Responses are recorded by placing electrodes at the back of your head and recording the readings on an electroencephalogram (EEG). Any abnormality that affects the brain's visual cortex can affect the visually evoked potential. Your doctor may advise this test if you show symptoms such as blurred vision, double vision flashing lights, loss of vision and weakness in the eyes.