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      The Evaluation of Corneal Graft Tissue by the Use of Trypan Blue

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      S. Karger AG

      Tissue evaluation, Corneal endothelium, Trypan blue, Corneal storage

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          Background: The quality of the donor cornea, which basically depends on the condition of the endothelial sheet, is an important factor for the successful outcome of penetrating keratoplasty. Patients and Methods: In this retrospective study, we present our experience in using trypan blue staining for the examination and evaluation of 498 consecutive corneal grafts from 251 donors, concerning their suitability for penetrating keratoplasty, during the decade 1986–1995. Results: Forty-two grafts out of 498 (8.5%) were considered not suitable for surgery because of the great number of destroyed cells (cell density less than 1,500 cells/mm<sup>2</sup>) and the abnormal cell size and cell shape. Nine out of the 456 (1.97%) operated eyes exhibited primary donor failure and needed re-operation, probably because of boundary cell density of the graft (ranged in those cases from 1,600 to 1,800 cells/mm<sup>2</sup>). No infections of grafts were observed. Conclusion: Tissue evaluation of corneal grafts by the use of trypan blue staining is a simple, cost-effective, safe and accurate method that does not influence the vitality of the endothelial layer of the grafts.

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          Author and article information

          S. Karger AG
          February 1999
          11 December 1998
          : 213
          : 1
          : 8-11
          Eye Bank of Greece, Department of Ophthalmology, Aristotle University of Thessaloniki, Greece
          27385 Ophthalmologica 1999;213:8–11
          © 1998 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.

          Page count
          Figures: 2, References: 15, Pages: 4
          Original Paper · Travail original · Originalarbeit


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