Evidence map›Paper›PMID 33818253›Full record

ArticleOphthalmic epidemiology2022

Blindness Secondary to Retinopathy of Prematurity in Sub-Saharan Africa.

Scott K Herrod, Adedayo Adio, Sherwin J Isenberg, Scott R Lambert

Abstract read
In one paragraph

Article in Ophthalmic epidemiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–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

15 citing papers in PubMed.

  1. Retinopathy of prematurity screening and treatment practice patterns: an African multi-country survey.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
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  12. The impact of a multidisciplinary intervention to reduce severe retinopathy of prematurity in Kampala, Uganda.Journal of perinatology : official journal of the California Perinatal Association · 2025
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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

4 authors.

Scott K HerrodDepartment of Public Health, Brigham Young University, Provo, Utah, USA.
Adedayo AdioDepartment of Ophthalmology, University of Port Harcourt Teaching Hospital, Port Harcourt, Nigeria.
Sherwin J IsenbergDepartment of Ophthalmology, Stein Eye Institute, UCLA School of Medicine, Los Angeles, California, USA.
Scott R LambertDepartment of Ophthalmology, Stanford University School of Medicine, Palo Alto, California, USA.

Funding

Stanford Vision Research CoreP30EY026877 · NEI · STANFORD UNIVERSITY · PI Jeffrey L Goldberg · 2017 to 2026
$8.0M
NEI NIH HHS P30 EY026877
6 · The paper itself

Abstract

purposeRetinopathy of Prematurity (ROP) has been suggested to be increasing in Africa. However, it was only previously documented as a cause of blindness in 8 of 48 (16.7%) sub-Saharan African countries. The purpose of this study was to better understand the magnitude and breadth of blindness from ROP in sub-Saharan Africa.

methodsA questionnaire was sent to 455 ophthalmologists practicing in sub-Saharan Africa; the questionnaire was available in English, French and Portuguese.

resultsResponses were received from 132 of 455 (29%) ophthalmologists to whom the survey was sent. Eighty-three respondents were identified as ROP-involved ophthalmologists and were from 26 of 48 (54%) sub-Saharan African countries. Ophthalmologists in 23 countries reported that they examined at least one child who was blind from ROP during the last 5 years. Sixteen of these countries had not previously reported cases of blindness from ROP in the literature. The perceived occurrence of Type 1 or more severe ROP was reported to be increasing by 31 of 77 (40%) ROP-involved ophthalmologists. ROP-involved pediatric ophthalmologists and retinal surgeons reported the number of infants they examined annually with Type 1 or more severe ROP increased from a median of 1 (range: 0-15) to a median of 4 (range: 0-40) from 2015 to 2019. ROP was estimated to be the cause of blindness for 10% of all blind children examined by ROP-involved pediatric ophthalmologists and retinal surgeons during 2019.

conclusionsROP is becoming a more important and widespread cause of childhood blindness in sub-Saharan Africa.

Indexed as

OphthalmologistsRetinopathy of PrematurityAfrica South of the SaharaBlindnessChildHumansInfantInfant, NewbornSurveys and QuestionnairesBlindnessChildhood BlindnessChildrenRetinopathy of Prematuritysub-Saharan Africa

Identifiers

PMID33818253
PMCPMC10186862

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.