Evidence map›Paper›PMID 40764567›Full record

ArticleBMC public health2025

Global, regional, and national differences in the burden of refraction disorders among children, adolescents, and older adults: current trends and future projections.

Qiheng Yuan, Longji Wang, Bianjin Sun, Siwen Chen, Yutong Kang, Yongliang Lou, Meiqin Zheng

Abstract read
In one paragraph

Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

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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

7 authors.

Qiheng Yuan *Wenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, School of Laboratory Medicine and Life Science, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China.
Longji Wang *Cadre Medical Department, The 1 st medical Center, Chinese PLAGeneral Hospital, Beijing, 100853, China.
Bianjin SunWenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, School of Laboratory Medicine and Life Science, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China.
Siwen ChenNational Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, China.
Yutong KangDepartment of Clinical Laboratory, Beijing Ditan Hospital, Capital Medical University, Beijing, China. kangyutong0601@163.com.
Yongliang LouWenzhou Key Laboratory of Sanitary Microbiology, Key Laboratory of Laboratory Medicine, School of Laboratory Medicine and Life Science, Ministry of Education, Wenzhou Medical University, Wenzhou, Zhejiang, China. lyl@wmu.edu.cn.
Meiqin ZhengNational Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, China. zmq@eye.ac.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRefraction disorders (RD), which includes myopia, hyperopia, astigmatism, and presbyopia, is the leading cause of visual impairment worldwide. Uncorrected RD is the leading cause of moderate and severe vision loss. However, existing studies have only analyzed the burden of RD at the global level, lacking analysis at the national level and specific populations. This study used data from the 2021 Global Burden of Disease (GBD) report to analyze regional differences and trends in the burden of RD among children, adolescents, and the elderly at the national level.

methodsGBD 2021 data were used to examine RD burden in these groups, exploring associations with the Socio-demographic Index (SDI) and analyzing inequality trends. Decomposition analysis was applied, frontier analysis identified potential burden reductions, and Bayesian Age-Period-Cohort (BAPC) Models were used to forecast future trends.

resultsFrom 1990 to 2021, RD cases increased from 21.48 million to 24.45 million (a 13.8% increase) in children and adolescents, and from 29.26 million to 60.82 million (an increase of 107.87%) in the elderly. Decomposition analysis also revealed that population growth was the primary driver of the increased RD burden in both age groups. In regions with Middle, High-middle, and High SDI, the estimated annual percentage change (EAPC) of Age-Standardized Prevalence Rate (ASPR) in children and adolescents was positive, indicating an upward trend in the burden of RD. RD burden differed by age and region: higher SDI regions had a heavier burden in children and adolescents, while lower-income countries faced a greater burden in the elderly. Health inequalities became more evident in children and adolescents, while slightly lessened in the elderly. Overall, the RD burden was higher in the elderly compared to children and adolescents. By 2030, global RD cases are projected to reach 24.21 million in children and adolescents and 79.70 million in the elderly (31.05% increase expected), with countries like India, China, Oman, Paraguay, and Congo facing significant challenges. In addition, countries such as India, Spain, Bangladesh and others pay special attention to the male burden.

conclusionThe current RD burden is serious and requires targeted management strategies, especially in High SDI regions for children and adolescents and in Low-middle SDI regions for the elderly. The male burden in some high-burden areas cannot be ignored.

Indexed as

Cost of IllnessGlobal HealthRefractive ErrorsAdolescentChildChild, PreschoolFemaleForecastingGlobal Burden of DiseaseHumansMaleYoung AdultAdolescentsChildrenDALYsGBDPrevalenceRefraction disordersSDIThe elderly

Identifiers

PMID40764567
PMCPMC12326702

What Socratic holds

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LicenceCC BY-NC-ND
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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 Socratic graph.