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[Transient monocular blindness: Vascular causes and differential diagnoses].
1Fondation ophtalmologique Adolphe-de-Rothschild, 25, rue Manin, 75019 Paris, France; Centre hospitalier national d'ophtalmologie des Quinze-Vingts, 28, rue de Charenton, 75012 Paris, France.
Journal Francais D'Ophtalmologie
|May 20, 2018
Summary
Transient monocular blindness, a temporary vision loss in one eye, is often caused by carotid artery issues. Prompt management, similar to brain transient ischemic attacks, is crucial to prevent strokes.
Area of Science:
- Neurology
- Ophthalmology
- Vascular Medicine
Background:
- Transient monocular blindness (TMB) presents as acute, temporary vision loss in one eye, typically resolving within an hour.
- It is frequently linked to retinal ischemia stemming from carotid artery embolism.
- Other potential causes include thrombosis, hemodynamic disorders, and vasospasm.
Purpose of the Study:
- To elucidate the underlying mechanisms of transient monocular blindness.
- To emphasize the critical link between TMB and cerebrovascular events.
- To advocate for standardized management protocols for TMB.
Main Methods:
- Review of existing literature on transient monocular blindness.
- Analysis of etiological factors including carotid embolism, thrombosis, and hemodynamic disorders.
- Comparison of TMB pathophysiology with transient ischemic attacks affecting the brain.
Main Results:
- Carotid embolism is the most common cause of TMB.
- Giant cell arteritis, severe carotid stenosis, and vasospasm are identified as other significant contributors.
- TMB is recognized as a carotid artery-originating transient ischemic attack.
Conclusions:
- Transient monocular blindness necessitates urgent evaluation and management.
- Treatment strategies for TMB should align with those for cerebral transient ischemic attacks.
- Effective management of TMB is essential for stroke prevention.
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