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Is Alignment Within 8 Prism Diopters of Orthotropia a Successful Outcome for Infantile Esotropia Surgery?

Is Alignment Within 8 Prism Diopters of Orthotropia a Successful Outcome for Infantile Esotropia... Abstract In the article titled "Is Alignment Within 8 Prism Diopters of Orthotropia a Successful Outcome for Infantile Esotropia Surgery?" by Kushner and Fisher,1 the authors' definition of the monofixation syndrome includes fusion on a distant Worth Four-Dot test display. We are not told whether the distant Worth target was presented in an illuminated black box (one common arrangement) or as an element of a visual acuity chart projection slide. As an illuminated black box, at 20 ft the usual size of this device computes to more than the approximately 1.25 degrees of arc believed to be the limit of the central binocular field. At shorter distances, when the luxury of a long lane is unavailable, the Worth display in this form is even more clearly a peripheral binocular target. In this situation, the authors state correctly that fusors, "probably" but not definitely, had monofixation syndrome, because central fusion was References 1. Kushner BJ, Fisher M. Is alignment within 8 prism diopters of orthotropia a successful outcome for infantile esotropia surgery? Arch Ophthalmol . 1996;114:176-180.Crossref http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Is Alignment Within 8 Prism Diopters of Orthotropia a Successful Outcome for Infantile Esotropia Surgery?

Archives of Ophthalmology , Volume 114 (12) – Dec 1, 1996

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References (1)

Publisher
American Medical Association
Copyright
Copyright © 1996 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1996.01100140728021
Publisher site
See Article on Publisher Site

Abstract

Abstract In the article titled "Is Alignment Within 8 Prism Diopters of Orthotropia a Successful Outcome for Infantile Esotropia Surgery?" by Kushner and Fisher,1 the authors' definition of the monofixation syndrome includes fusion on a distant Worth Four-Dot test display. We are not told whether the distant Worth target was presented in an illuminated black box (one common arrangement) or as an element of a visual acuity chart projection slide. As an illuminated black box, at 20 ft the usual size of this device computes to more than the approximately 1.25 degrees of arc believed to be the limit of the central binocular field. At shorter distances, when the luxury of a long lane is unavailable, the Worth display in this form is even more clearly a peripheral binocular target. In this situation, the authors state correctly that fusors, "probably" but not definitely, had monofixation syndrome, because central fusion was References 1. Kushner BJ, Fisher M. Is alignment within 8 prism diopters of orthotropia a successful outcome for infantile esotropia surgery? Arch Ophthalmol . 1996;114:176-180.Crossref

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Dec 1, 1996

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