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Related Experiment Videos

Ocular abnormalities in chronic schizophrenia: clinical implications

D Smith1, C Pantelis, J McGrath

  • 1Mental Health Research Institute, Parkville, Victoria, Australia.

The Australian and New Zealand Journal of Psychiatry
|April 1, 1997
PubMed
Summary

Long-term antipsychotic treatment in schizophrenia patients revealed significant ocular abnormalities, including vision problems and corneal pigmentation, at baseline. No new issues arose during the study, suggesting pre-existing conditions are common.

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Area of Science:

  • Ophthalmology
  • Psychiatry
  • Pharmacology

Background:

  • Chronic schizophrenia patients often receive long-term antipsychotic medication.
  • Ocular side effects of antipsychotics require careful monitoring.
  • Visual acuity and toxic side effects are critical health aspects in this population.

Purpose of the Study:

  • To assess visual acuity and ocular toxicity in chronic schizophrenia patients on long-term antipsychotic therapy.
  • To identify baseline ocular abnormalities and monitor changes during a new atypical antipsychotic trial.
  • To understand the relationship between antipsychotic use and ocular health in schizophrenia.

Main Methods:

  • A randomized double-blind study involving 23 inpatients with chronic schizophrenia (DSM-III-R).

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  • Ocular examinations were conducted at baseline and trial completion.
  • Patients were treated with various antipsychotics, with a new atypical agent introduced.

    • Main Results:

    • High prevalence of baseline ocular abnormalities (82.6%), including lens opacities/cataracts and corneal pigmentation.
    • Three patients experienced solar burns due to delusions; nearly 70% had untreated visual acuity problems.
    • No new ocular abnormalities were observed at follow-up examinations.

    Conclusions:

    • Ocular disturbances in schizophrenia are likely multifactorial, involving illness-related factors and antipsychotic medication effects.
    • Confounding factors include smoking, general health, medication variety, and substance abuse.
    • Clinical implications are relevant for community-based psychiatric care models.