Journal article

Ocular motor measures of visual processing changes in visual snow syndrome

Emma J Solly, Meaghan Clough, Allison M McKendrick, Paige Foletta, Owen B White, Joanne Fielding

Neurology | LIPPINCOTT WILLIAMS & WILKINS | Published : 2020


OBJECTIVE: To determine whether changes to cortical processing of visual information can be evaluated objectively using 3 simple ocular motor tasks to measure performance in patients with visual snow syndrome (VSS). METHODS: Sixty-four patients with VSS (32 with migraine and 32 with no migraine) and 23 controls participated. Three ocular motor tasks were included: prosaccade (PS), antisaccade (AS), and interleaved AS-PS tasks. All these tasks have been used extensively in both neurologically healthy and diseased states. RESULTS: We demonstrated that, compared to controls, the VSS group generated significantly shortened PS latencies (p = 0.029) and an increased rate of AS errors (p = 0.001), ..

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Funding Acknowledgements

This study was funded by a donation from the Visual Snow Initiative.