A visual evoked potential test (VEP) is used to look for problems in the brain that affect vision. A machine records brain waves related to the nerves that make up the visual pathway.

Optic Nerve and Muscles
AR00018_96472_optic
Copyright © Nucleus Medical Media, Inc.

This test is often used to:

  • Diagnose and follow multiple sclerosis (MS)
  • Test vision in children and adults who are unable to read eye charts

There are many symptoms that might lead your doctor to order a VEP. You may be having double vision, blurred vision, or loss of part or all of your vision.