Journal Mobile Options
Table of Contents
Vol. 42, No. 3, 2009
Issue release date: November 2009
Section title: Original Paper
Ophthalmic Res 2009;42:128–137
(DOI:10.1159/000227278)

Extraction of a Chronically Implanted, Microfabricated, Subretinal Electrode Array

Chen J. · Shah H.A. · Herbert C. · Loewenstein J.I. · Rizzo, III J.F.
aDepartment of Ophthalmology, Harvard Medical School and the Massachusetts Eye and Ear Infirmary, and bCenter for Innovative Visual Rehabilitation, VA Boston Healthcare System, Boston, Mass., USA

Do you have an account?

Register and profit from personalized services (MyKarger) Login Information

Please create your User ID & Password





Contact Information









I have read the Karger Terms and Conditions and agree.

Register and profit from personalized services (MyKarger) Login Information

Please create your User ID & Password





Contact Information









I have read the Karger Terms and Conditions and agree.

To view the fulltext, please log in

To view the pdf, please log in

Buy

  • FullText & PDF
  • Unlimited re-access via MyKarger (new!)
  • Unrestricted printing, no saving restrictions for personal use
  • Reduced rates with a PPV account
read more

Direct: USD 38.00
Account: USD 26.50

Select

Rent/Cloud

  • Rent for 48h to view
  • Buy Cloud Access for unlimited viewing via different devices
  • Synchronizing in the ReadCube Cloud
  • Printing and saving restrictions apply

Rental: USD 8.50
Cloud: USD 20.00

Select

Subscribe

  • Automatic perpetual access to all articles of the subscribed year(s)
  • Unlimited re-access via Subscriber Login or MyKarger
  • Unrestricted printing, no saving restrictions for personal use
read more

Subcription rates


Select


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: 6/17/2008
Accepted: 9/16/2008
Published online: 7/4/2009

Number of Print Pages: 10
Number of Figures: 7
Number of Tables: 1

ISSN: 0030-3747 (Print)
eISSN: 1423-0259 (Online)

For additional information: http://www.karger.com/ORE

Abstract

Purpose: To assess the feasibility of extraction of a chronically implanted subretinal electrode array. Methods: Inactive, polyimide strips (10 mm × 1.5 mm × 15 μm) were surgically implanted into the subretinal space of 8 rabbits using a mostly ab externo approach. Pre- and postoperative clinical examinations, electroretinography and in some cases optical coherence tomography were performed to follow the course of the eyes. Two months after implantation, the polyimide strips were extracted from 5 eyes; 2 animals kept the implants and served as controls. All animals were then sacrificed and eyes enucleated for histological examination. Results: All 8 surgeries yielded successful placement of the arrays into the subretinal space. All 5 extraction surgeries were performed without obvious complications. Clinical examinations and electroretinography did not reveal any significant abnormalities. The histological examinations showed alterations from normal anatomy in all animals; the anatomical changes in the explanted animals were relatively mild and confined to the area of the surgery. Conclusions: Successful extraction of electrode arrays from the subretinal space of rabbits can be reliably performed 2 months after implantation, which is beyond the time period when postoperative scarring would be most intense.


  

Author Contacts

Dr. Joseph Rizzo
Neuro-ophthalmology Service
Massachusetts Eye and Ear Infirmary, 243 Charles St.
Boston, MA 02114 (USA)
E-Mail Joseph_Rizzo@meei.harvard.edu

  

Article Information

Received: June 17, 2008
Accepted after revision: September 16, 2008
Published online: July 4, 2009
Number of Print Pages : 10
Number of Figures : 7, Number of Tables : 1, Number of References : 38
Additional supplementary material is available online - Number of Parts : 1

  

Publication Details

Ophthalmic Research (Journal for Research in Experimental and Clinical Ophthalmology)

Vol. 42, No. 3, Year 2009 (Cover Date: November 2009)

Journal Editor: Pleyer U. (Berlin)
ISSN: 0030-3747 (Print), eISSN: 1423-0259 (Online)

For additional information: http://www.karger.com/ORE


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: 6/17/2008
Accepted: 9/16/2008
Published online: 7/4/2009

Number of Print Pages: 10
Number of Figures: 7
Number of Tables: 1

ISSN: 0030-3747 (Print)
eISSN: 1423-0259 (Online)

For additional information: http://www.karger.com/ORE


Copyright / Drug Dosage

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 or, in the case of photocopying, direct payment of a specified fee to the Copyright Clearance Center.
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 goverment 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.