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Related Experiment Videos

Homonymous visual field defects and stroke in an older population.

Jagjit Singh Gilhotra1, Paul Mitchell, Paul R Healey

  • 1Department of Ophthalmology, the University of Sydney, Westmead Hospital, NSW, Australia.

Stroke
|October 5, 2002
PubMed
Summary

Homonymous visual field defects, common in older adults, are strongly linked to stroke history. This study provides prevalence data and highlights the significant association with stroke and other health conditions.

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Area of Science:

  • Ophthalmology
  • Neurology
  • Public Health

Background:

  • Homonymous visual field defects (HVFDs) can significantly impact quality of life.
  • Understanding the prevalence of HVFDs in older populations is crucial for public health initiatives.

Purpose of the Study:

  • To determine the prevalence of homonymous visual field defects (HVFDs) in an urban older population.
  • To investigate associations between HVFDs and self-reported stroke history.

Main Methods:

  • Automated visual field tests were conducted on 3654 individuals aged 49 years and older in Sydney, Australia.
  • Medical history, including stroke, hypertension, diabetes, and renal impairment, was collected.
  • Masked grading was used to classify the presence of HVFDs.

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Main Results:

  • The prevalence of HVFDs was 0.8% (25 individuals).
  • A strong association was found between HVFDs and stroke history (OR 23.4).
  • Older age, hypertension, diabetes, and renal impairment were also associated with HVFDs.

Conclusions:

  • This study provides accurate prevalence data for HVFDs in an older urban population.
  • Approximately half of individuals with HVFDs did not report a history of stroke, indicating potential underdiagnosis.
  • HVFDs are significantly associated with stroke and other comorbidities, emphasizing the need for screening.