Intracranial aneurysms with superior division paresis of the oculomotor nerve

John Guy, A. L. Day, J. L. Demer

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Five patients with intracranial aneurysms had unilateral ptosis, limitation of supraduction, and normal pupillary reactivity. The most common aneurysm location for superior division paresis of the oculomotor nerve was the superior cerebellar-posterior cerebral artery junction, where aneurysms (3) of the basilar artery compressed and flattened the interpeduncular oculomotor nerve from below. A superior cerebellar artery aneurysm and brain stem infarction affected the intra-axial course of the oculomotor nerve producing superior division paresis. Only an aneurysm of the intracavernous carotid artery resulted in superior division paresis at the expected anatomic site of bifurcation of the oculomotor nerve into its superior and inferior divisions. Because the superior division supplies innervation exclusively to the superior rectus muscle and levator palpebrae, an aneurysm involving this branch does not affect the pupillo-constrictor fibers. Consequently, cerebral angiography should be considered in the initial evaluation of this ocular motor deficit.

Original languageEnglish
Pages (from-to)1071-1076
Number of pages6
JournalOphthalmology
Volume96
Issue number7
StatePublished - Jan 1 1989
Externally publishedYes

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Oculomotor Nerve
Intracranial Aneurysm
Paresis
Aneurysm
Brain Stem Infarctions
Cerebral Angiography
Basilar Artery
Carotid Arteries
Arteries
Muscles

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Intracranial aneurysms with superior division paresis of the oculomotor nerve. / Guy, John; Day, A. L.; Demer, J. L.

In: Ophthalmology, Vol. 96, No. 7, 01.01.1989, p. 1071-1076.

Research output: Contribution to journalArticle

Guy, J, Day, AL & Demer, JL 1989, 'Intracranial aneurysms with superior division paresis of the oculomotor nerve', Ophthalmology, vol. 96, no. 7, pp. 1071-1076.
Guy, John ; Day, A. L. ; Demer, J. L. / Intracranial aneurysms with superior division paresis of the oculomotor nerve. In: Ophthalmology. 1989 ; Vol. 96, No. 7. pp. 1071-1076.
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