Evidence map›Paper›PMID 32669834›Full record

ReviewClinical ophthalmology (Auckland, N.Z.)2020

The Role of Time Exposed to Outdoor Light for Myopia Prevalence and Progression: A Literature Review.

Leila Sara Eppenberger, Veit Sturm

Abstract readReview
In one paragraph

Review in Clinical ophthalmology (Auckland, N.Z.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed.

  1. Trial
  2. Spectacle lenses for control of myopia progression in children.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Review
  3. Article
  4. Review
  5. Influence of light on myopia-a review.International journal of ophthalmology · 2026
    Review
  6. Optical and Visual Diet in Myopia.Investigative ophthalmology & visual science · 2025
    Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Following prevalence of myopia in a large Swiss military cohort over the last decade: where is the European "myopia boom"?Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2024
    Article
  12. Review
  13. Article
  14. Lifestyle Factors in Myopic Spanish Children.Children (Basel, Switzerland) · 2024
    Article
  15. Article
  16. Article
  17. Myopia progression in school children with prolonged screen time during the coronavirus disease confinement.Medical hypothesis, discovery & innovation ophthalmology journal · 2023
    Article
  18. Article
  19. Article
  20. Time spent outdoors as an intervention for myopia prevention and control in children: an overview of systematic reviews.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2022
    Review
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

2 authors.

Leila Sara EppenbergerDepartment of Health Sciences & Technology, ETH, Zurich, Switzerland.
Veit SturmDepartment of Health Sciences & Technology, ETH, Zurich, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe development of myopia as a refractive disorder seems to hold multifactorial causes. Among others, increased time exposed to natural light outdoors is regarded as possible effective preventive measure against myopia development. The objective of this review is to analyse and summarize the evidence investigating the association between time outdoors and myopia prevalence and progression.

methodsA review, restricted to articles published in the last ten years, was conducted. The literature search for the included articles was performed in the following databases: PubMed, the Cochrane Library, Web of Science and Scopus. If predefined inclusion criteria were met, the studies were further categorized and data were summarized and individually evaluated.

resultsTwo cross-sectional studies, 7 prospective cohort studies and 3 intervention studies were reported in this review, representing the data of a total of 32,381 participants. The majority of the studies found an inverse association between myopia incidence/prevalence and increased time outdoors. The association between time outdoors and myopia progression on the other hand remains debatable; one recent randomized controlled trial indicating a protective value of increased time outdoors for further progression in myopic children.

conclusionIn summary, increasing time exposed to outdoor light seems to be a simple and effective preventive measure to decrease myopia prevalence. Also, contrasting previous review work, it may represent a potential strategy for myopia progression control. Future investigation is necessary to better define and quantify outdoor time and its effects on myopia.

Indexed as

exposure to sunlightmyopiamyopia controloutdoor exposureprevalenceprogression

Identifiers

PMID32669834
PMCPMC7337435

What OpenQuestion holds

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LicenceCC BY-NC
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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.