PURPOSE: To provide a practical review of the ophthalmologic manifesta
tions of intracranial vascular abnormalities, METHODS: We reviewed ocu
lar manifestations of the most common intracranial vascular abnormalit
ies: intracranial aneurysms, carotid-cavern ous fistulas, arteriovenou
s malformations, and cavernous malformations, RESULTS: Unruptured aneu
rysms can compress the third cranial nerve and the anterior visual pat
hways,Ruptured aneurysms and subarachnoid hemorrhage can result in Ter
son syndrome and papilledema, Direct and indirect carotid-cavern ous f
istulas most commonly cause the classic triad of proptosis, conjunctiv
al chemosis, and cranial bruit but can masquerade as chronic conjuncti
vitis, Arteriovenous malformations, with or without hemorrhage, may co
mpress portions of the retro chiasmal pathways, causing visual field l
oss, Cavernous malformations, when in the brainstem, commonly cause ab
normalities of supranuclear, nuclear, and fascicular ocular motility,
CONCLUSIONS: The ophthalmologist may be the first physician to encount
er clinical manifestations of intracranial vascular abnormalities that
may herald devastating neurologic complications, Prompt diagnosis fac
ilitates appropriate manage ment and therapy. (C) 1998 by Elsevier Sci
ence Inc. All rights reserved.