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      Ocular Pulsation Correlates with Ocular Tension

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          Abstract

          In 26 random out-patients, including 13 treated glaucoma patients and ocular hypertensives, the higher the ocular tension, the greater the pulse amplitude, by Alcon pneumotonometry, at a statistically significant level. In a single untreated hypertensive, when 2-hourly pneumotonometry was done for 24 h, the correlation was similar and significant. The higher the diastolic blood pressure, the higher the ocular pulsation, also significantly. Pulsation is suggested to be a pump, the choroid being the piston, contributing (1) to an increase in the outflow of aqueous humour and (2) to a homeostatic mechanism contributing to normalization of the intra-ocular pressure, wherein pulsation increases or decreases, as the intra-ocular pressure increases or decreases, respectively.

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          Author and article information

          Journal
          ORE
          Ophthalmic Res
          10.1159/issn.0030-3747
          Ophthalmic Research
          S. Karger AG
          0030-3747
          1423-0259
          1992
          1992
          10 December 2009
          : 24
          : 6
          : 338-343
          Affiliations
          aUniversity Ophthalmology Unit, Department of Surgery, and cMedical Statistics Unit, University of Edinburgh, UK; bDepartment of Ophthalmology, Yamanashi Medical College, Tamaho, Yamanashi, Japan
          Article
          267190 Ophthalmic Res 1992;24:338–343
          10.1159/000267190
          1287513
          bb86f77d-19cc-4a0f-8033-dbb5f3eab790
          © 1992 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
          : 09 March 1992
          : 09 June 1992
          Page count
          Pages: 6
          Categories
          Original Paper

          Vision sciences,Ophthalmology & Optometry,Pathology
          Choroidal pulsation,Ocular pulsation,Aqueous pump,Intra-ocular tension,Choroidal piston

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