Definition
The fleeting amaurosis consists of a transient reduction in monocular visual acuity (loss of vision of one eye). This symptom is the result of a sudden and temporary hypoperfusion of the eyeball, due to embolism or lesions of the optical pathways and of the relative nerve centers.
The episodes of fleeting amaurosis appear as a blurred vision in only one eye, followed, after a few seconds or minutes, by a slow recovery.
Retinal or optic nerve ischemia is often a consequence of stenosis on an atheromatous basis of the carotid artery. The fleeting amaurosis is also a symptom of a transient ischemic attack, embolic or thrombotic stroke and cranial trauma. Sometimes, transient monocular blindness occurs due to inflammatory processes, degenerative changes, tumors and intoxications.
Possible Causes * of fleeting Amaurosis
- Giant cell arteritis
- Atherosclerosis
- Transient ischemic attack
- Migraine
- Stroke
- Cerebral ischemia
- Essential thrombocythemia
