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Simple eye test measures damage from multiple sclerosis, UT Southwestern researchers find
Date:6/7/2010

DALLAS June 8, 2010 A quick, painless eye measurement shows promise as a way to diagnose multiple sclerosis in its very early stages, and to track the effectiveness of treatments, researchers from UT Southwestern Medical Center have found in a multicenter study.

"This technique has the potential to provide a powerful and reliable assessment strategy to measure structural changes in the central nervous system, both for diagnostic purposes and in clinical trials to monitor whether potential treatments can prevent deterioration or restore nerve function," said Dr. Elliot Frohman, professor of neurology and ophthalmology, director of the Multiple Sclerosis Clinical Center at UT Southwestern and co-senior author of the study, which appears in the June issue of Annals of Neurology.

The technique, called optical coherence tomography (OCT), reliably measures thinning of the retina in people with multiple sclerosis, the researchers found.

"An ophthalmologist might someday be able to use OCT to identify retinal thinning during a routine eye exam and consider MS as a prime diagnosis," Dr. Frohman said. "However, this prospect is a long way off."

The retina, which lines the back of the eye, detects light and sends visual information to the brain via the optic nerve. Retinal thinning can occur as a result of multiple sclerosis, but this study, Dr. Frohman said, is the first to track such thinning over time in a single group of patients. The Neurology study involved 299 patients with MS who were tracked for six months to 4.5 years.

The researchers found that the retinas thinned significantly with time, and patients often concurrently lost visual sharpness. Overall, the study indicated that OCT is reliable, easy to use and sensitive to changes over time. It could also be used with current clinical measures, the researchers said.

Because the retina is easily visible through the pupil, it provides a convenient rou
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Contact: Aline McKenzie
aline.mckenzie@utsouthwestern.edu
214-648-3404
UT Southwestern Medical Center
Source:Eurekalert

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