Evidence map›Paper›PMID 23130365›Full record

ArticleArchives of ophthalmology (Chicago, Ill. : 1960)2012

A combined index of structure and function for staging glaucomatous damage.

Felipe A Medeiros, Renato Lisboa, Robert N Weinreb, Christopher A Girkin, Jeffrey M Liebmann, Linda M Zangwill

Abstract read
In one paragraph

Article in Archives of ophthalmology (Chicago, Ill. : 1960), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

71 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  20. Clinical Perspectives and Trends: Microperimetry as a Trial Endpoint in Retinal Disease.Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde · 2021
    Review

11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Felipe A MedeirosHamilton Glaucoma Center, Department of Ophthalmology, University of California, San Diego, CA 92093-0946, USA. fmedeiros@glaucoma.ucsd.edu
Renato Lisboa
Robert N Weinreb
Christopher A Girkin
Jeffrey M Liebmann
Linda M Zangwill

Funding

African Descent And Glaucoma Evaluation Study (ADAGES)U10EY014267 · NEI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ZANGWILL, LINDA M · 2002 to 2010
$13.2M
Vision BiostatisticsP30EY022589 · NEI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI LINDA M ZANGWILL · 2012 to 2026
$10.3M
Diagnostic Innovations in Glaucoma:Structural AssessmentR01EY011008 · NEI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ZANGWILL, LINDA M · 1995 to 2015
$8.7M
Diagnostic Innovations in Glaucoma Study (DIGS): Functional ImpairmentR01EY021818 · NEI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI MEDEIROS, FELIPE · 2011 to 2015
$3.4M
African Descent and Glaucoma Evaluation (ADAGES) II: Glaucoma ProgressionR01EY019869 · NEI · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI ZANGWILL, LINDA M · 2010 to 2014
$2.8M
Quantification of Glaucomatous Optic NeuropathyK23EY013959 · NEI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GIRKIN, CHRISTOPHER ANTHONY · 2002 to 2006
$994k
NEI NIH HHS EY021818NEI NIH HHS EY11008NEI NIH HHS EY13959NEI NIH HHS EY14267NEI NIH HHS K23 EY013959NEI NIH HHS P30 EY022589NEI NIH HHS R01 EY011008NEI NIH HHS R01 EY019869NEI NIH HHS R01 EY021818NEI NIH HHS U10 EY014267
6 · The paper itself

Abstract

objectivesTo present and evaluate a new combined index of structure and function (CSFI) for staging and detecting glaucomatous damage.

methodsObservational study including 333 glaucomatous eyes (295 with perimetric glaucoma and 38 with preperimetric glaucoma) and 330 eyes of healthy subjects. All the eyes were tested with standard automated perimetry and spectral domain optical coherence tomography within 6 months. Estimates of the number of retinal ganglion cells (RGCs) were obtained from standardautomated perimetry and spectral domain optical coherence tomography and a weighted averaging scheme was used to obtain a final estimate of the number of RGCs for each eye. The CSFI was calculated as the percent loss of RGCs obtained by subtracting estimated from expected RGC numbers. The performance of the CSFI for discriminating glaucoma from normal eyes and the different stages of disease was evaluated by receiver operating characteristic curves.

resultsThe mean CSFI, representing the mean estimated percent loss of RGCs, was 41% and 17% in the perimetric and preperimetric groups, respectively (P.001). They were both significantly higher than the mean CSFI in the healthy group (P.001). The CSFI had larger receiver operating characteristic curve areas than isolated indexes of structure and function for detecting perimetric and preperimetric glaucoma and differentiating among early, moderate, and advanced stages of visual field loss.

conclusionAn index combining structure and function performed better than isolated structural and functional measures for detection of perimetric and preperimetric glaucoma as well as for discriminating different stages of the disease.

Indexed as

AdultAgedAged, 80 and overArea Under CurveAxonsCell CountFemaleFollow-Up StudiesGlaucomaHumansIntraocular PressureMaleMiddle AgedOptic DiskOptic Nerve DiseasesProspective Studies

Identifiers

PMID23130365
PMCPMC3787828

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.