summary: The authors used OCT, a technique which uses light to examine the thickness of the retina at the back of the eye, to examine a large group of people with MS. They found differences in the subtypes, even if they had never had optic neuritis. OCT looks promising as a non-invasive way of measuring axonal loss.

authors: Pulicken M, Gordon-Lipkin E, Balcer LJ, Frohman E, Cutter G, Calabresi PA.

source: Neurology. 2007 Nov 27;69(22):2085-92.

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