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Comment & Response
August 12, 2019

Mischaracterization of Spaceflight-Associated Neuro-ocular Syndrome

Author Affiliations
  • 1Adult & Transitional Hydrocephalus, Departments of Neurology and Neurological Surgery, University of Washington School of Medicine, Seattle
  • 2Umeå Hydrocephalus Research Group, Department of Clinical Neuroscience, University of Umeå, Umeå, Sweden
JAMA Neurol. 2019;76(10):1258-1259. doi:10.1001/jamaneurol.2019.2376

To the Editor The Viewpoint by Roberts and Petersen1 asserts that the enlargement of the cerebral ventricles of astronauts after long-duration spaceflight is a form of normal-pressure hydrocephalus (NPH). We contend that this claim is incorrect and that it mischaracterizes a disorder affecting astronauts known as spaceflight-associated neuro-ocular syndrome (SANS).2

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