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Motion sickness amelioration induced by prism spectacles.

P E Vente1, J E Bos, G de Wit

  • 1Instituut voor Zintuigfysiologie, TNO, Soesterberg, The Netherlands. bos@tm.tno.nl

Brain Research Bulletin
|March 3, 1999
PubMed
Summary

Prism glasses prescribed for reading difficulties unexpectedly reduced car sickness in children. Symptoms improved significantly and returned upon discontinuation, suggesting a direct therapeutic effect beyond placebo.

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Area of Science:

  • Ophthalmology
  • Pediatrics
  • Neurology

Background:

  • Learning disabilities can impact various aspects of a child's development.
  • Car sickness (motion sickness) is a common issue affecting children.
  • Prism glasses are sometimes used to address visual processing issues.

Purpose of the Study:

  • To investigate an observed side effect of prism glasses.
  • To determine if prism glasses alleviate car sickness in children with learning disabilities.
  • To quantify the reduction in car sickness symptoms.

Main Methods:

  • Prescription of Utermöhlen prism glasses for reading improvement in learning disabled children.
  • Monitoring and quantifying reported car sickness symptoms.
  • Assessing symptom changes after discontinuation of prism glasses.

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Main Results:

  • A significant alleviation of car sickness was observed as a side effect.
  • A decrease in the estimated number of emeses (vomiting episodes) per year per patient was recorded.
  • Symptoms of car sickness returned when the prism glasses were no longer used.

Conclusions:

  • Prism glasses, prescribed for reading difficulties, can unexpectedly alleviate car sickness in children.
  • The effect appears specific to the prism glasses and not a placebo effect.
  • Further research may explore the mechanism behind this visual-motor connection.