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J Neurol Neurosurg Psychiatry 2005;76:1173-1174 doi:10.1136/jnnp.2004.052720
  • Short report

Optic flow induced nystagmus

  1. A Petzold1,2,
  2. G T Plant2
  1. 1Institute of Neurology, London, UK
  2. 2National Hospital of Neurology and Neurosurgery, and Moorfields Eye Hospital, London, UK
  1. Correspondence to:
 Dr A Petzold
 Institute of Neurology and Neuroimmunology, Queen Square, London WC1N 3BG, UK; a.petzoldion.ucl.ac.uk
  • Received 26 August 2004
  • Accepted 21 December 2004
  • Revised 21 December 2004

Abstract

A new form of nystagmus is described in this paper: optic flow induced nystagmus (OFN). Optic field flow, for example when driving or viewing films on a large screen, triggered non-fatiguable upbeat nystagmus. This type of nystagmus could not be induced by vestibular stimuli, positioning, or self motion. The aetiology and anatomical correlate of OFN remains unknown. Treatment with gabapentin suppressed OFN.

Footnotes

  • Competing interests: none declared

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