Amaurosis fugax is best described as?

Amaurosis fugax is best described as?

• A. Bilateral vision loss lasting hours
• B. Temporary monocular vision loss lasting minutes with full recovery
• C. Permanent monocular blindness
• D. Cloudy vision with floaters

Answer: (B)

Amaurosis fugax is a brief, painless episode of monocular vision loss caused by transient retinal ischemia, most often from an embolus or reduced flow in the retinal circulation supplied by the carotid system. Because blood flow is restored, vision returns completely within minutes, though episodes can recur. This pattern—sudden unilateral vision loss that resolves quickly—fits amaurosis fugax and sets it apart from bilateral vision loss, permanent monocular blindness, or cloudy vision with floaters, which point to other ocular or neurologic issues. Clinically, it’s a warning sign of carotid artery disease and elevated stroke risk, so it warrants urgent vascular risk evaluation and prevention efforts (carotid imaging, antiplatelet therapy, statin therapy, blood pressure control).

Amaurosis fugax is a brief, painless episode of monocular vision loss caused by transient retinal ischemia, most often from an embolus or reduced flow in the retinal circulation supplied by the carotid system. Because blood flow is restored, vision returns completely within minutes, though episodes can recur. This pattern—sudden unilateral vision loss that resolves quickly—fits amaurosis fugax and sets it apart from bilateral vision loss, permanent monocular blindness, or cloudy vision with floaters, which point to other ocular or neurologic issues. Clinically, it’s a warning sign of carotid artery disease and elevated stroke risk, so it warrants urgent vascular risk evaluation and prevention efforts (carotid imaging, antiplatelet therapy, statin therapy, blood pressure control).