Commonly caused by transient ischaemic attacks.
The visual loss in amaurosis fugax is transient, painless and monocular. It may be total or partial, and lasts from a few seconds to several hours.
The causes involve interruptions in the circulation to the visual system .
Immediate aspirin and rapid evaluation are very desirable.
Indices of inflammation - CRP and ESR - and the usual baseline bloods.
Carotid ultrasound imaging to seek a source of emboli.
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