High AC/A Accommodative Esotropia Strabismus Treated with Contact Lenses: A Single Case Design (N=1) Study

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dc.contributor.authorGonzález Díaz-Obregón, Enrique
dc.contributor.authorBarra Lázaro, Francisco
dc.contributor.authorSánchez Pérez, Isabel
dc.contributor.authorAntona Peñalba, Beatriz
dc.contributor.authorBarrio De Santos, Ana Rosa
dc.date.accessioned2023-06-20T11:02:03Z
dc.date.available2023-06-20T11:02:03Z
dc.date.copyrightCOPYRIGHT 2012. All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means,electronic or mechanical, including xerographic copy, photocopy, recording, or an information storage and retrieval system,without permission in writing from the publisher, except as specifically allowed by law (each paid subscriber may print one hard copy of each issue, for personal use only, by simply executing the “print” command on their computer/printer).
dc.date.issued2007
dc.descriptionVersión preprint del artículo publicado
dc.description.abstractBACKGROUND AND PURPOSE: The purpose was to determine the efficacy of two types of contact lenses (spherical disposable and aplanatic) as treatment in a patient with esotropia with a high Accommodative Convergence/Accommodation Ratio (AC/A). Due to the possibility of the appearance of accommodative insufficiency in this kind of patient, (i.e., following many years of bifocal glasses use), the elimination of the plus addition lens is advisable. Nevertheless, in some patients, this change leads to the appearance of a residual angle of esodeviation in near vision. It was expected that monofocal aplanatic contact lenses could achieve, due to their optical characteristics, an accurate and orthotropic binocular alignment, without aggravating an undesirable manifestation of the accommodative insufficiency. METHODS: An experimental design of a single case (N=1) was used in which the subject acted as his own control. With bifocal glasses the subject displayed stability in his binocular and accommodative system at every distance of vision for the past three years. We compared the efficacy of two different types of hydrophilic contact lenses to control the angle of deviation, both at distance and at near vision. RESULTS: Neither of the two contact lenses produced the results of stability and the correct binocular alignment that had been achieved with bifocal glasses. This subject experienced a worse manifest esodeviation in distance vision with aplanatic lenses than with the disposable ones. CONCLUSIONS: These monofocal contact lenses did not create acceptable binocular alignment and stability in a subject with a high AC/A accommodative esotropia.en
dc.description.departmentDepto. de Optometría y Visión
dc.description.facultyFac. de Óptica y Optometría
dc.description.refereedFALSE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/33900
dc.identifier.issn1088-6281
dc.identifier.relatedurlhttp://cisne.sim.ucm.es/record=b1769439~S6*spi
dc.identifier.urihttps://hdl.handle.net/20.500.14352/51624
dc.issue.number2
dc.journal.titleBinocular vision & strabismus quarterly
dc.language.isoeng
dc.page.final95
dc.page.initial90
dc.publisherBinoculus Publishing
dc.rights.accessRightsrestricted access
dc.subject.cdu617.7-089.243
dc.subject.cdu617.761-009.24
dc.subject.cdu617.758.1
dc.subject.keywordEsotropia
dc.subject.keywordStrabismus
dc.subject.keywordContact Lenses
dc.subject.keywordAccommodation ocular
dc.subject.keywordVisual Acuity
dc.subject.ucmOptica (Medicina)
dc.subject.ucmLentes de contacto
dc.subject.ucmÓptica oftálmica
dc.subject.unesco3311.11 Instrumentos ópticos
dc.titleHigh AC/A Accommodative Esotropia Strabismus Treated with Contact Lenses: A Single Case Design (N=1) Study
dc.typejournal article
dc.volume.number22
dspace.entity.typePublication
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relation.isAuthorOfPublication8215ed9f-0de3-40c2-b832-e1377967bba7
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relation.isAuthorOfPublication.latestForDiscovery0f69baec-32d9-4337-bf45-1f03d71cf698
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