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Squints and diplopia seen after brain damage

M S Fowler1, D T Wade, A J Richardson

  • 1Department of Physiology, Oxford University, UK.

Journal of Neurology
|January 1, 1996
PubMed
Summary
This summary is machine-generated.

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Squint (strabismus) is common after brain damage, affecting 37% of patients. However, most individuals with acquired squint do not experience double vision (diplopia).

Area of Science:

  • Neurology
  • Ophthalmology
  • Rehabilitation Medicine

Background:

  • Brain injury, including stroke and head trauma, can lead to various neurological deficits.
  • Ocular motor impairments, such as squint (strabismus), can be a consequence of neurological damage.
  • The incidence and impact of squint following brain injury require further investigation.

Purpose of the Study:

  • To determine the incidence of squint in patients with acquired brain damage.
  • To explore the relationship between the type and location of brain lesions and the occurrence of squint.
  • To assess the prevalence of double vision (diplopia) in patients with post-brain injury squint.

Main Methods:

  • An observational study was conducted on 239 consecutive patients in a neurological rehabilitation unit.

Related Experiment Videos

  • Patients included those with stroke (129), head injury (84), and other neurological conditions (26).
  • Standard orthoptic assessments were performed, including visual acuity, cover test, eye movement recording, and tests of binocular function.

    • Main Results:

    • Squint was diagnosed in 89 (37%) of the 239 patients.
    • Only 32 (36%) of those with squint reported experiencing double vision.
    • Brainstem lesions were associated with squint in 56% of head injury patients; cortical strokes also frequently caused squint (28%), even without apparent brainstem involvement.

    Conclusions:

    • Squint is a frequent complication of brain damage, irrespective of apparent brainstem involvement.
    • The majority of patients with acquired squint following brain injury do not suffer from diplopia.
    • Both cortical and brainstem lesions can lead to squint, with varying associations with diplopia.