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      Comparison of Diagnostic Ability between a Fast Strategy, Tendency-Oriented Perimetry, and the Standard Bracketing Strategy

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          Abstract

          Purpose: To compare the diagnostic abilities of the standard bracketing strategy (BR) and a fast strategy, the tendency-oriented perimetry (TOP). Methods: Seventy-seven controls and 91 eyes from patients with glaucoma were analyzed with the strategies TOP and BR. Sensitivity (Se), specificity (Sp), the area under the receiver operating characteristic (ROC) curve (AC) and the optimum cutoff value (CO) were calculated for the visual field indices mean defect (MD), the square root of the loss variance (sLV) and the number of pathological points (NPP). Results: In the glaucoma group, the mean MD value using TOP and BR was 7.5 and 8.3 dB, respectively. The mean sLV value using TOP and BR was 5.0 and 5.3 dB, respectively. Indices provided by TOP had higher ROC values than the ones provided by BR. Using TOP, the index with the best diagnostic ability was sLV (Sp = 94.8, Se = 90.1, AC = 0.966, CO = 2.5 dB), followed by NPP and MD. Using BR, the best results were obtained for MD (Sp = 92.2, Se = 81.3, AC = 0.900, CO = 2.5 dB) followed by sLV and NPP. Conclusions: A fast strategy, TOP, had superior diagnostic ability than the standard BR. Although TOP provided lower LV values than BR, the diagnostic ability of this index was higher than that of the conventional strategy.

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          Fatigue effects in automated perimetry.

          C. Johnson, C W Adams, R. Lewis (1988)
          The influence of fatigue and related factors on automated perimetric testing was evaluated in both eyes of sixteen normal observers and sixteen patients with early-to-moderate visual field loss using a Digilab 750 automated perimeter and a customized test procedure. False positive rate, false negative rate, and detection sensitivity at 5,10,15, and 20 degrees eccentricity were measured in 1.5-rain intervals throughout a 21-min visual field examination. Half of the normal observers and patients with visual field loss were given a briefrest(1.5-min) midway through each visual field exam to determine whether this would reduce fatigue effects. Our findings revealed that patients displayed considerably higher average false positive and false negative rates than normal observers. However, neither the patients nor normal observers demonstrated any consistent changes in false positive rate or false negative rate as a function of testing duration. In contrast, both normal observers and patients showed an average decrease in sensitivity as a function of increasing test duration with the magnitude of the time-dependent sensitivity loss becoming greater with increasing stimulus eccentricity. Patients demonstrated a larger time-dependent sensitivity loss than normal observers, averaging ~4dB at 20 degrees eccentricity. The introduction of a brief pause midway through the test procedure appeared to reduce the time-dependent sensitivity loss for the second half of the test procedure, especially for greater eccentricities.
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            Comparison between Tendency-Oriented Perimetry (TOP) and octopus threshold perimetry.

            José MORALES, Marc L. Weitzman, Manuel Gonzalez de la Rosa (2000)
            To compare the results obtained by a new ultra-short automated perimetry test known as Tendency-Oriented Perimetry (TOP), which is an algorithm based on estimation of thresholds from information gathered from adjacent points with those obtained by a standard bracketing approach. TOP is designed to save up to 1/5 of the time taken by standard strategy by presenting each stimulus once on each location (instead of 4 to 6 times per location with the standard technique) and reaching a final threshold estimate by gathering information from responses to adjacent locations.
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              Recent developments in automated perimetry in glaucoma diagnosis and management.

              Julie A C Johnson (2002)
              Recently, there have been several new developments in automated perimetry that have contributed to enhanced diagnosis and management of glaucoma. This paper will briefly review four of the latest advances in automated perimetry: (1) efficient test strategies that reduce the testing time and variability of automated perimetric testing, in particular, the Swedish Interactive Threshold Algorithm (SITA) and Tendency Oriented Perimetry (TOP) test strategies will be described; (2) Frequency Doubling Technology (FDT) perimetry, which has been shown to be a rapid, effective method of detecting glaucomatous visual field loss; (3) Short Wavelength Automated Perimetry (SWAP), which has demonstrated the ability to predict the onset and progression of glaucomatous visual field deficits; (4) The Multifocal Electroretinogram (mfERG) and the Multifocal Visual Evoked Potential (mfVEP), which provide an objective measurement of the visual field. Each of these techniques has presented distinct advantages for the diagnosis and management of glaucoma.
              Article 0 comments Cited 14 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (publisher-id): OPH
                Journal ID (nlm-ta): Ophthalmologica
                Journal ID (doi): 10.1159/issn.0030-3755
                Title: Ophthalmologica
                Publisher: S. Karger AG
                ISSN (Print): 0030-3755
                ISSN (Electronic): 1423-0267
                Publication date Subscription-year: 2005
                Publication date (Print): November 2005
                Publication date (Electronic): 16 November 2005
                Volume: 219
                Issue: 6
                Pages: 373-378
                Affiliations
                aHospital Universitario de Canarias, Universidad de La Laguna, La Laguna, and bDepartment of Ophthalmology, Instituto Castroviejo, Universidad Complutense, Madrid, Spain; cGlaucoma Service, Department of Ophthalmology and Visual Sciences, Texas Tech University Health Sciences Center, Lubbock, Tex., USA; dAberdeen Royal Infirmary, University of Aberdeen, Aberdeen, UK
                Article
                Publisher ID: 88381 Other ID: Ophthalmologica 2005;219:373–378
                DOI: 10.1159/000088381
                PubMed ID: 16286798
                SO-VID: 7a0e7060-44ff-44ba-a103-3eb32834cbef
                Copyright © © 2005 S. Karger AG, Basel
                License:

                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
                Date received : 28 April 2004
                Page count
                Figures: 2, Tables: 3, References: 27, Pages: 6
                Categories
                Subject: Original Paper

                ScienceOpen disciplines: Vision sciences,Ophthalmology & Optometry,Pathology
                Keywords: Glaucoma,Perimetry,Visual field
                Data availability:
                ScienceOpen disciplines: Vision sciences, Ophthalmology & Optometry, Pathology
                Keywords: Glaucoma, Perimetry, Visual field

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