Evidence map›Paper›PMID 29970057›Full record

ArticleBMC ophthalmology2018

The increasing prevalence of myopia and high myopia among high school students in Fenghua city, eastern China: a 15-year population-based survey.

Min Chen, Aimin Wu, Lina Zhang, Wei Wang, Xinyi Chen, Xiaoning Yu, Kaijun Wang

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in BMC ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 114 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
114citing papers in PubMed, 5 pooled it
13.6field-weighted citation impact, top 1% 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

114 citing papers in PubMed, 5 syntheses or guidelines pooled it, 206 citations in OpenAlex.

  1. Pooled it
  2. Regional variations and temporal trends of childhood myopia prevalence in Africa: A systematic review and meta-analysis.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2022
    Pooled it
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  6. Trial
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  8. One-year results of the Variation of Orthokeratology Lens Treatment Zone (VOLTZ) Study: a prospective randomised clinical trial.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2021
    Trial
  9. Trial
  10. Article
  11. Article
  12. Article
  13. Atropine Eye Drops in Childhood Myopia Control: A Review.International journal of medical sciences · 2026
    Review
  14. Article
  15. Management of myopia: a mini-review.Medical hypothesis, discovery & innovation ophthalmology journal · 2026
    Review
  16. Article
  17. Article
  18. Article
  19. Asymmetric stress distribution on lamina cribrosa in glaucoma patients with high myopia.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Article
  20. Review

54 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

7 authors at 1 institution in 1 country.

Min ChenEye Center, the 2nd Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China.
Aimin WuDepartment of Ophthalmology, Fenghua People's Hospital, Fenghua, Zhejiang, China.
Lina ZhangEye Center, the 2nd Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China.
Wei WangEye Center, the 2nd Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China.
Xinyi ChenEye Center, the 2nd Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China.
Xiaoning YuEye Center, the 2nd Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China.
Kaijun WangEye Center, the 2nd Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China. ze_wkj@zju.edu.cn.
Zhejiang University · CN

Funding

National Natural Science Foundation of China No.81700829
6 · The paper itself

Abstract

backgroundMyopia is the leading cause of preventable blindness in children and young adults. Multiple epidemiological studies have confirmed a high prevalence of myopia in Asian countries. However, fewer longitudinal studies have been performed to evaluate the secular changes in the prevalence of myopia, especially high myopia in China. In the present study, we investigated trends in the prevalence of myopia among high school students in Fenghua city, eastern China, from 2001 to 2015.

methodsThis was a population-based, retrospective study. Data were collected among 43,858 third-year high school students. Noncycloplegic autorefraction was used to determine refractive error, which was defined as low myopia, moderate myopia, high myopia and very high myopia according to the spherical equivalent from the worse eye of each participant. The prevalence of myopia was calculated and the annual percentage change (APC) was used to quantify the time trends. All analyses were conducted using the SPSS, Stata and Graphpad Prism software.

resultsFrom 2001 to 2015, the prevalence of overall myopia increased from 79.5% to 87.7% (APC =0.59%), with a significant increase of moderate myopia (38.8% to 45.7%, APC = 0.78%), high myopia (7.9% to 16.6%, APC = 5.48%) and very high myopia (0.08% to 0.92%, APC = 14.59%), while the prevalence of low myopia decreased from 32.7% to 24.4% (APC = - 1.73%). High myopia and very high myopia contributed the major part of the increasing trend of myopia prevalence (contribution rate 27.00% and 69.07%, respectively).

conclusionsDuring the 15-year period, there was a remarkable increase in the prevalence of high and very high myopia among high school students, which might become a serious public health problem in China for the next few decades.

Indexed as

ForecastingSchoolsStudentsAdolescentChinaFemaleFollow-Up StudiesHumansMaleMyopiaPrevalenceRefraction, OcularRetrospective StudiesUrban PopulationEpidemiologyHigh myopiaHigh school studentMyopiaPrevalence

Identifiers

PMID29970057
PMCPMC6029024
OpenAlexW2810648779

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.