Overview
Definition
Transient monocular vision loss ('fleeting blindness').
Epidemiology
Varies globally depending on genetics, environment, or exposure.
Etiology & Risk Factors
- Retinal embolus (usually from carotid artery plaque).
Clinical Symptoms
- Sudden 'curtain coming down' over one eye
- lasting minutes
- then resolving.
Clinical Approach
Diagnosis
- Carotid ultrasound
- Echocardiogram.
Management
- Aspirin
- Carotid endarterectomy (if indicated).
Complications
- Impending Central Retinal Artery Occlusion or Stroke.