Evidence map›Paper›PMID 36593346›Full record

ArticleEye (London, England)2023

Corneal topography in preterm children aged 2 years to 12 years with or without retinopathy of prematurity.

Po-Yi Wu, Hung-Chi Chen, Yi-Jen Hsueh, Kuan-Jen Chen, Nan-Kai Wang, Laura Liu, Yen-Po Chen, Yih-Shiou Hwang, Chi-Chun Lai, Wei-Chi Wu

Open access · greenAbstract read
In one paragraph

Article in Eye (London, England), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

4 citing papers in PubMed, 5 citations in OpenAlex.

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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

10 authors at 4 institutions in 2 countries.

Po-Yi Wu *Department of Education, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan.
Hung-Chi Chen *Department of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan.ORCID 0000-0002-1117-7878
Yi-Jen HsuehDepartment of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan.
Kuan-Jen ChenDepartment of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan.
Nan-Kai WangDepartment of Ophthalmology, Edward S. Harkness Eye Institute, Columbia University Irving Medical Center, Columbia University, New York, NY, USA.
Laura LiuDepartment of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan.
Yen-Po ChenCollege of Medicine, Chang Gung University, Taoyuan, 333, Taiwan.ORCID 0000-0001-9382-4858
Yih-Shiou HwangDepartment of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan.ORCID 0000-0003-2744-3234
Chi-Chun LaiDepartment of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan.
Wei-Chi WuDepartment of Ophthalmology, Chang Gung Memorial Hospital, Linkou Branch, Taoyuan, 333, Taiwan. weichi666@gmail.com.ORCID 0000-0003-3760-7255
Chang Gung University · TWChang Gung Memorial Hospital · TWColumbia University · USNational Yang Ming Chiao Tung University · TW

Funding

Instrumentation, Fabrication, and Design CoreP30EY019007 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Xin Zhang · 2010 to 2026
$12.9M
Reprogramming the metabolome to overcome the genetic heterogeneity in retinitis pigmentosaR01EY031354 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WANG, NAN-KAI · 2020 to 2024
$2.0M
NEI NIH HHS P30 EY019007
6 · The paper itself

Abstract

objectivesTo evaluate corneal topography in full-term and preterm children with or without retinopathy of prematurity (ROP).

methodsWe enrolled children aged from 2 years to 12 years between January 2019 and May 2021 in the following four groups: full-term (group 1), premature without ROP (group 2), untreated premature with ROP (group 3), and laser-treated and/or intravitreal injection (IVI) of anti-vascular endothelial growth factor (VEGF)-treated premature with ROP (group 4). Corneal topography was measured with the Galilei Placido-dual Scheimpflug analyzer G4 every half year, and was compared among the groups using generalized estimating equation models at approximately 7 years of age.

resultsWe included 77, 178, 45, and 131 participants in groups 1, 2, 3, and 4, respectively. The mean (standard deviation) number of visits per patient was 2.9 (1.4). Compared with full-term eyes, premature eyes demonstrated steeper anterior corneal curvature (p = 0.016 and p = 0.008 for the mean and steep K, respectively), higher anterior and posterior corneal astigmatism (p = 0.036 and p = 0.016, respectively), and thinner thinnest pachymetry (p < 0.001). The laser-treated ROP eyes displayed steeper anterior corneal curvature (p = 0.040 for steep K) and higher anterior corneal astigmatism (p = 0.005) than the IVI-treated eyes. Moreover, they exhibited high cone location and magnitude index (1.96) reaching the cut-off for detecting keratoconus (1.82).

conclusionsThe premature status led to greater corneal ectasia, and laser treatment for ROP caused further corneal steepness. Higher anterior corneal astigmatism was associated with laser treatment. The ROP pathology and IVI anti-VEGF treatment exerted a marginal effect on corneal topography.

Indexed as

AstigmatismKeratoconusRetinopathy of PrematurityChildCorneaCorneal TopographyHumansInfant, Newborn

Identifiers

PMID36593346
PMCPMC10397294
OpenAlexW4313454871

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.