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Related Experiment Videos

Retinal emboli and stroke: the Beaver Dam Eye Study.

R Klein1, B E Klein, S C Jensen

  • 1Department of Ophthalmology and Visual Sciences, University of Wisconsin Medical School, Madison 53705-2397, USA. kleinr@epi.ophth.wisc.edu

Archives of Ophthalmology (Chicago, Ill. : 1960)
|August 17, 1999
PubMed
Summary

Retinal emboli, often linked to smoking and hypertension, significantly increase stroke death risk. Early detection and intervention for risk factors like high blood pressure may be beneficial.

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Area of Science:

  • Ophthalmology
  • Cardiovascular Medicine
  • Epidemiology

Background:

  • Retinal emboli are a potential indicator of systemic vascular disease.
  • Understanding their prevalence and associated risk factors is crucial for public health.
  • Previous studies have explored links between retinal emboli and cardiovascular events.

Purpose of the Study:

  • To determine the prevalence and 5-year incidence of retinal emboli.
  • To identify associated risk factors for retinal emboli.
  • To investigate the relationship between retinal emboli and mortality from stroke and ischemic heart disease.

Main Methods:

  • The Beaver Dam Eye Study, a population-based cohort of 4926 individuals aged 43-86.
  • Retinal emboli were identified from fundus photographs at baseline and 5-year follow-up.

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  • Mortality data were obtained from death certificates.

    • Main Results:

    • The prevalence of retinal emboli was 1.3%, with a 5-year incidence of 0.9%.
    • Prevalence was associated with higher pulse pressure, hypertension, diabetes, smoking, cardiovascular disease, and retinopathy.
    • Incidence was linked to smoking and prior coronary artery bypass surgery.
    • Retinal emboli were associated with a 2.61-fold increased hazard of stroke-related death.

    Conclusions:

    • Individuals with retinal emboli face a heightened risk of death from stroke.
    • Smoking, hypertension, and cardiovascular disease are associated with the presence of retinal emboli.
    • Medical intervention to manage hypertension in patients with retinal emboli may be beneficial.