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      • Record: found
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      Refractive Index of the Human Lens Surface Measured with an Optic Fibre Sensor

      research-article
      Ophthalmic Research
      S. Karger AG
      Fibre optics, Refractive index, Lens, human

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          Abstract

          The refractive index of the human eye lens has been measured directly with a reflectometric, optic fibre sensor. Thirteen human lenses ranging in age from 27 to 84 years were examined. The results show that the refractive index is higher on the anterior than on the posterior surface with most of the values ranging from 1.364 to 1.381 and 1.338 to 1.357, respectively. There is no topographical variation along either surface and no evidence of age-related differences. Results using the sensor are compared with those from the Abbe refractometer on homogeneous materials. The refractive index of distilled water was found to be 1.332 with the fibre sensor and 1.3326 with the Abbe refractometer; of 0.5% agarose gel, it was 1.334 and 1.3355, 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
          1994
          1994
          11 December 2009
          : 26
          : 1
          : 32-35
          Affiliations
          Department of Electronic Engineering, Latrobe University, Bundoora, and the National Vision Research Institute, Carlton, Vic, Australia
          Article
          267371 Ophthalmic Res 1994;26:32–35
          10.1159/000267371
          8134087
          e518e66d-b74f-4a10-85ca-521423608e9a
          © 1994 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
          : 10 May 1993
          : 16 July 1993
          Page count
          Pages: 4
          Categories
          Original Paper

          Vision sciences,Ophthalmology & Optometry,Pathology
          Fibre optics,Refractive index,Lens, human
          Vision sciences, Ophthalmology & Optometry, Pathology
          Fibre optics, Refractive index, Lens, human

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