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Photophobia and cortical visual impairment

J E Jan1, M Groenveld, D P Anderson

  • 1Department of Paediatrics, University of British Columbia.

Developmental Medicine and Child Neurology
|June 1, 1993
PubMed
Summary

Photophobia, or light intolerance, affects about one-third of children with cortical visual impairment (CVI). This light sensitivity often starts at birth or after brain injury and may lessen over time.

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Area of Science:

  • Ophthalmology
  • Neurology
  • Pediatrics

Background:

  • Photophobia (light intolerance) is a poorly understood symptom with ocular and central classifications.
  • Its association with neurological disorders suggests central nervous system involvement.
  • Cortical visual impairment (CVI) is a common cause of visual impairment in children.

Purpose of the Study:

  • To investigate the prevalence and characteristics of photophobia in children with CVI.
  • To understand the onset and temporal course of photophobia in relation to CVI etiology (congenital vs. acquired).

Main Methods:

  • Observational study of children diagnosed with CVI.
  • Clinical assessment of photophobia symptoms, including onset and intensity.
  • Correlation of photophobia with the type and timing of CVI.

Main Results:

  • Approximately one-third of children with CVI experience persistent, usually mild, photophobia.
  • In congenital CVI, photophobia is present from birth.
  • In acquired CVI, photophobia appears immediately following brain insult and tends to diminish over time.

Conclusions:

  • Photophobia is a common associated symptom in children with CVI.
  • The timing of photophobia onset correlates with the etiology of CVI.
  • The underlying pathophysiology of photophobia in CVI remains unclear, similar to other neurological conditions.

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