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Transient monocular blindness.

R S Lord1

  • 1St Vincent's Hospital, Darlinghurst, NSW, Australia.

Australian and New Zealand Journal of Ophthalmology
|August 1, 1990
PubMed
Summary
This summary is machine-generated.

Transient monocular blindness (TMB), or amaurosis fugax, involves temporary vision loss in one eye. It often stems from carotid artery plaque and requires investigation similar to transient ischemic attacks (TIAs).

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Area of Science:

  • Ophthalmology
  • Neurology
  • Vascular Medicine

Background:

  • Transient monocular blindness (TMB), also known as amaurosis fugax, presents as brief episodes of visual disturbance in one eye.
  • This condition can occur independently or alongside transient hemispheric ischemia (TIA).

Purpose of the Study:

  • To outline the diagnostic and investigative approach for TMB.
  • To emphasize the link between TMB and cerebrovascular disease.

Main Methods:

  • Review of TMB presentation and common etiologies.
  • Comparison of TMB investigation protocols with those for neurologic TIAs.

Main Results:

  • TMB is typically caused by atheromatous plaque at the carotid bifurcation, leading to emboli or reduced blood flow.

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  • Funduscopic examination often reveals no visible embolus or ischemic changes in TMB patients.
  • Conclusions:

    • TMB necessitates prompt investigation and management comparable to neurologic TIAs.
    • Key diagnostic priorities include identifying extracranial arterial disease, cardiac abnormalities, and hematological disorders.