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Poor postural stability in children with vertigo and vergence abnormalities.

Maria Pia Bucci1, Thanh-Thuan Lê, Sylvette Wiener-Vacher

  • 1IRIS, FRE 3154, CNRS (Centre National de la Recherche Scientifique), Pôle Chirurgie ORL-OPH (Oto-rhino-laryngologie-Ophtalmologie), Hôpital Robert Debré, Paris, France. mariapia.bucci@gmail.com

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Children with vertigo and vergence abnormalities show poorer postural control. Binocular vision is crucial for stabilizing posture, especially at near distances, suggesting vergence deficits impact balance.

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Pediatrics

Background:

  • Vergence deficits may impact postural control through proprioceptive signaling.
  • Previous research suggests a link between vergence and balance.
  • Understanding these connections is vital for pediatric neurological and visual assessments.

Purpose of the Study:

  • To assess postural control in children with vertigo and vergence abnormalities.
  • To compare postural stability in children with and without vergence issues.
  • To investigate the role of visual input in postural control.

Main Methods:

  • Posturography platform used to measure quiet stance stability.
  • Children fixated targets at near (40 cm) and far (200 cm) distances.
  • Evaluated postural control under binocular, monocular, and no-vision conditions.

Main Results:

  • Postural stability improved at near distances and with binocular viewing.
  • Children with vertigo and vergence abnormalities exhibited greater instability.
  • Monocular viewing and eyes covered significantly reduced stability for all children.

Conclusions:

  • Binocular visual information, including vergence disparity, is critical for near-distance postural stability.
  • Postural instability in children with vertigo may stem from vergence deficits.
  • Immature compensatory mechanisms (vestibular, somatosensory, cerebellar) may also contribute to instability.