AMAUROSIS FUGAX
Abstract:
Amaurosis fugax (Latin fugax meaning fleeting, Greek amaurosis meaning darkening, dark, or
obscure) is a transient monocular visual loss.In 1990, the causes of amaurosis fugax were better refined
by the Amaurosis Fugax Study Group, which has defined five distinct classes of transient monocular
blindness based on their supposed cause: embolic, hemodynamic, ocular, neurologic, and idiopathic.
Concerning the pathology underlying these causes (except. idiopathic), "some of the more frequent
causes include atheromatous disease of the internal carotid or ophthalmic artery, vasospasm, optic
neuropathies, giant cell arteritis, angle-closure glaucoma, increased intracranial pressure, orbital
compressive diseaseand blood hyperviscosity or hypercoagulability.
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