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Related Experiment Videos

Optic flow induced nystagmus.

A Petzold1, G T Plant

  • 1Institute of Neurology, London, UK. a.petzold@ion.ucl.ac.uk

Journal of Neurology, Neurosurgery, and Psychiatry
|July 19, 2005
PubMed
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A new eye movement disorder, optic flow induced nystagmus (OFN), is described. This non-fatiguable upbeat nystagmus is triggered by visual stimuli like driving and can be treated with gabapentin.

Area of Science:

  • Ophthalmology
  • Neuroscience
  • Vestibular System

Background:

  • Nystagmus is an involuntary eye movement disorder.
  • Optic flow, the apparent motion of objects in a visual scene, is common in daily activities.
  • Previous research has not identified nystagmus specifically induced by optic flow.

Observation:

  • A novel form of nystagmus, termed optic flow induced nystagmus (OFN), was observed.
  • OFN presents as non-fatiguable upbeat nystagmus.
  • This nystagmus was triggered by optic field flow experienced during activities such as driving or watching large-screen films.

Findings:

  • Optic flow induced nystagmus (OFN) is distinct from nystagmus induced by vestibular stimuli, positioning, or self-motion.
  • The underlying etiology and anatomical correlates of OFN are currently unknown.

Related Experiment Videos

  • Gabapentin treatment effectively suppressed OFN in the observed cases.

    • Implications:

    • OFN represents a new diagnostic consideration for upbeat nystagmus.
    • Understanding OFN may provide insights into visual-vestibular interactions.
    • Gabapentin shows potential as a therapeutic agent for OFN.