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A-V SYNDROMES-Reply

A-V SYNDROMES-Reply Abstract The letter of Dr. G. M. Howard "A-V Syndromes" published in the May issue of the Archives of Ophthalmology was referred to the author of the paper in question, who offers the following reply. To the Editor. —Dr. Howard feels that the attempt to explain the A-V syn dromes on the basis of underaction or overaction of one pair of extraocular muscles is unsatisfactory in the light of vector analysis computations and the anatomy of the extraocular muscles. Furthermore, he concludes that as the result of these factors, horizontal muscles must contract and enter into vertical movements of the eye in order to avoid severe adduction due to the overpowering adducting ability of the vertical recti, as compared to the obliques.Though based on careful anatomic dissection and sound mathematical computations, Dr. Howard's conclusions are nonetheless theoretical and raise further questions since they are not borne out by the following References 1. Tamler, E.; Marg, E., and Jampolsky, A.: An Electromyographic Study of Coactivity of Human Extraocular Muscles in Following Movements , A.M.A. Arch. Ophthal. 61:270, 1959.Crossref 2. Breinin, G. M.: Quantitation of Extraocular Muscle Innervation , A.M.A. Arch. Ophthal. 57:644, 1957.Crossref 3. Jampolsky, A.: Bilateral Anomalies of Oblique Muscles , Trans. Amer. Acad. Ophthal. Otolaryng. 61:689, 1957. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

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Publisher
American Medical Association
Copyright
Copyright © 1962 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1962.00960030157035
Publisher site
See Article on Publisher Site

Abstract

Abstract The letter of Dr. G. M. Howard "A-V Syndromes" published in the May issue of the Archives of Ophthalmology was referred to the author of the paper in question, who offers the following reply. To the Editor. —Dr. Howard feels that the attempt to explain the A-V syn dromes on the basis of underaction or overaction of one pair of extraocular muscles is unsatisfactory in the light of vector analysis computations and the anatomy of the extraocular muscles. Furthermore, he concludes that as the result of these factors, horizontal muscles must contract and enter into vertical movements of the eye in order to avoid severe adduction due to the overpowering adducting ability of the vertical recti, as compared to the obliques.Though based on careful anatomic dissection and sound mathematical computations, Dr. Howard's conclusions are nonetheless theoretical and raise further questions since they are not borne out by the following References 1. Tamler, E.; Marg, E., and Jampolsky, A.: An Electromyographic Study of Coactivity of Human Extraocular Muscles in Following Movements , A.M.A. Arch. Ophthal. 61:270, 1959.Crossref 2. Breinin, G. M.: Quantitation of Extraocular Muscle Innervation , A.M.A. Arch. Ophthal. 57:644, 1957.Crossref 3. Jampolsky, A.: Bilateral Anomalies of Oblique Muscles , Trans. Amer. Acad. Ophthal. Otolaryng. 61:689, 1957.

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Jul 1, 1962

References