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      • Record: found
      • Abstract: found
      • Article: found

      Convergence Paralysis after Lesions of the Cerebellar Peduncles

      case-report
      , ,
      Ophthalmologica
      S. Karger AG
      Vergence, Convergence paralysis, Accommodation, Cerebellum

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          Abstract

          We studied vergence eye movements in a patient with limited hemorrhage affecting the right cerebellar peduncles and the hemisphere. The patient showed exotropia of 30 prism dptr during near vision. Some vergence paradigms were investigated in this patient. We studied fusional vergence evoked by placing a wedge prism before one eye. Accommodative vergence was studied by blur stimulus using a servocontrolled optometer. Lens accommodation was also recorded during blur stimulus. Although accommodative responses were normal, accommodative vergence was almost absent as well as fusional convergence in this patient. It has previously been reported that the cerebellum has a role in the control of vergence in the monkey. Our data suggest that the human cerebellum also relates to the control of vergence.

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          Author and article information

          Journal
          OPH
          Ophthalmologica
          10.1159/issn.0030-3755
          Ophthalmologica
          S. Karger AG
          0030-3755
          1423-0267
          1993
          1993
          01 April 2010
          : 206
          : 3
          : 143-148
          Affiliations
          Department of Ophthalmology, Sapporo Medical College, Sapporo, Japan
          Article
          310380 Ophthalmologica 1993;206:143–148
          10.1159/000310380
          8272337
          1e04b7f6-8f7f-472d-ba63-ce606f6f7d5c
          © 1993 S. Karger AG, Basel

          Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

          History
          : 15 October 1992
          : 19 October 1992
          Page count
          Pages: 6
          Categories
          Original Paper

          Vision sciences,Ophthalmology & Optometry,Pathology
          Accommodation,Convergence paralysis,Cerebellum,Vergence

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