Evidence map›Paper›PMID 23538512›Full record

ArticleJAMA ophthalmology2013

Prevalence of glaucoma in an urban West African population: the Tema Eye Survey.

Donald L Budenz, Keith Barton, Julia Whiteside-de Vos, Joyce Schiffman, Jagadeesh Bandi, Winifred Nolan, Leon Herndon, Hanna Kim, Graham Hay-Smith, James M Tielsch and 1 more

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in JAMA ophthalmology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed, 3 pooled it
2.4field-weighted citation impact, top 11% of its field
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

101 citing papers in PubMed, 3 syntheses or guidelines pooled it, 29 citations in OpenAlex.

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  13. Glaucoma case finding and management among optometrists in Ghana and Nigeria.Optometry and vision science : official publication of the American Academy of Optometry · 2025
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41 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

11 authors.

Donald L BudenzDepartment of Ophthalmology, Bascom Palmer Eye Institute, Miller School of Medicine, University of Miami, Department of Ophthalmology, Miami, FL, USA. dbudenz@med.unc.edu
Keith Barton
Julia Whiteside-de Vos
Joyce Schiffman
Jagadeesh Bandi
Winifred Nolan
Leon Herndon
Hanna Kim
Graham Hay-Smith
James M Tielsch
Tema Eye Survey Study Group

Funding

Shared Equipment ModuleP30EY014801 · NEI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI Dmitry V Ivanov · 2004 to 2026
$12.2M
CLINICAL TRIALS TRAINING PROGRAM IN VISION RESEARCHT32EY007127 · NEI · JOHNS HOPKINS UNIVERSITY · PI MEINERT, CURTIS L · 1991 to 2010
$4.7M
NEI NIH HHS P30 EY014801NEI NIH HHS T32 EY007127NEI NIH HHS T32 EY 07127
6 · The paper itself

Abstract

importanceMultiple studies have found an increased prevalence, younger age at onset, and more severe course of glaucoma in people of African descent, but these findings are based on studies conducted outside Africa.

objectiveTo determine the prevalence of glaucoma in an urban West African population of adults. DESIGN AND

settingA population-based, cross-sectional study of adults 40 years and older conducted from September 1, 2006, through December 31, 2008, from 5 communities in Tema, Ghana.

participantsParticipants from randomly selected clusters underwent a screening examination that consisted of visual acuity, frequency doubling perimetry, applanation tonometry, and optic disc photography. Participants who failed any of these tests were referred for complete examination, including gonioscopy, standard automated perimetry, and stereoscopic optic disc photography.

resultsA total of 6806 eligible participants were identified, and 5603 (82.3%) were enrolled in the study. The field examination referred 1869 participants (33.3%) to the clinic examination, and 1538 (82.2%) came for complete examination. A total of 362 participants were identified as having glaucoma of any type and category. Primary open-angle glaucoma was the underlying diagnosis in 342 participants (94.5%). The prevalence of primary open-angle glaucoma was 6.8% overall, increasing from 3.7% among those 40 to 49 years old to 14.6% among those 80 years and older, and was higher in men than in women in all age groups, with an overall male-female prevalence ratio of 1.5. Of the participants with glaucoma, 9 (2.5%) were blind using World Health Organization criteria, and only 12 (3.3%) were aware that they had glaucoma. CONCLUSIONS AND RELEVANCE: The prevalence of glaucoma is higher in this urban West African population than in previous studies of people of East or South African and of non-African descent. Strategies to identify affected persons and effectively manage the burden of glaucoma are needed in West Africa.

Indexed as

AdultAgedAged, 80 and overAge DistributionBlack PeopleCross-Sectional StudiesFemaleGhanaGlaucoma, Open-AngleGonioscopyHealth SurveysHumansIntraocular PressureMaleMiddle AgedPrevalence

Identifiers

PMID23538512
PMCPMC4139110
OpenAlexW1977572948

What OpenQuestion holds

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Registered trials

None linked

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.