Ask the expert: Visual evoked potentials (VEP)

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A visual evoked potentials test measures the speed of the messages along your sensory nerves to the brain. VEP tests are sometimes used in the diagnosis of MS. In this video we learn about how VEP work and how they are used in both diagnosing MS but also in MD research with Dr Nick Cunniffe, a neurologist and researcher in Cambridge.

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I'm having one done tomorrow because I had 4 MRIs last year and 2 of them showed optic lesions and 2 of them showed no optic lesions and one of the MRIs showed active optic neuritis. My doctor thought having one of these test would help in this situation with more puzzle pieces since all my MRI readings are all over the place with my optic nerves.

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