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KOHJI TOKUMASU, MD; KAZUYOSHI GOTO, MD; BERNARD COHEN, MD

Arch Ophthalmol. 1965;73(6):851-862.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Introduction

The action of the superior oblique muscle has been inferred from anatomical relationships, from oculomotor defects produced by III or IV nerve damage, and from ophthalmotropes. With few exceptions^1,2 there is general agreement that when the eye is adducted the superior oblique muscle acts to depress the eyeball and when the eye is abducted, it acts to intort and abduct it.^3-8 Nevertheless there have been few experimental studies of superior oblique muscle action in the intact mammal or in humans.^1-3,9 This paper presents the results of such a study. It shows that eye movements induced by isolated contraction of the superior oblique muscle fit closely with those predicted from the anatomy of the globe and orbit.

Methods and Materials

Seven cats and one monkey were studied. In each case the trochlear nucleus and/or trochlear nerve roots were electrically stimulated to produce contraction of the contralateral superior . . . [Full Text PDF of this Article]

Author Affiliations
New York

From the Department of Neurology, the Mount Sinai Hospital.

Footnotes
Submitted for publication Feb 5, 1965.

Reprint requests to Neurophysiology Laboratory, Atran 710, Mount Sinai Hospital, 1 E 100th St, New York 10029 (Dr. Cohen).

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