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Article
August 1960

Visual Field Studies After Temporal Lobectomy for Epilepsy

Author Affiliations

Minneapolis
From the Department of Ophthalmology, University of Minnesota Medical School.; Fellow, Department of Ophthalmology, University of Minnesota Medical School (Dr. Nerenberg).; Clinical Associate Professor of Ophthalmology, University of Minnesota Medical School (Dr. Wendland).

Arch Ophthalmol. 1960;64(2):195-200. doi:10.1001/archopht.1960.01840010197004
Abstract

Introduction  The relatively recent advent of temporal lobectomy in patients with "idiopathic" epilepsy has provided a new and unique approach to the study of the architecture of the geniculocalcarine pathway in the temporal lobe of man. The mechanism of production of the visual field defects in temporal lobe tumors, the presence or absence of Meyer's loop,1 and the degree of approximation of fibers from corresponding retinal points in the anterior portion of the optic radiations have been points of controversy almost since Meyer's original description of the loop that bears his name.Although many have found incongruous field defects in temporal lobe tumors, the explanations of these defects have been diverse. Traquair2 felt that since the defects were incongruous, the optic tract must be affected. He believed that from the lateral geniculate body on, the fibers from corresponding retinal points were in close approximation, and that if the

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