Evidence map›Paper›PMID 38631861›Full record

Trial reportThe British journal of ophthalmology2024

Effectiveness of repeated low-level red light in myopia prevention and myopia control.

Guihua Liu, Hua Rong, Yipu Liu, Biying Wang, Bei Du, Desheng Song, Ruihua Wei

Open access · hybridAbstract readRandomized Controlled TrialComparative Study
In one paragraph

Trial report in The British journal of ophthalmology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 6 pooled it
13.1field-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

21 citing papers in PubMed, 6 syntheses or guidelines pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Article
  8. Review
  9. Review
  10. Article
  11. Identifying and Managing Pre-Myopia: A Narrative Review.Clinical ophthalmology (Auckland, N.Z.) · 2026
    Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. IMI-Interventions for Controlling Myopia Onset and Progression 2025.Investigative ophthalmology & visual science · 2025
    Review
  17. Article
  18. Review
  19. Review
  20. Article
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.

Guihua Liu *Tianjin Medical University Eye Hospital, Tianjin, China.ORCID 0000-0002-9669-3774
Hua Rong *Tianjin Medical University Eye Hospital, Tianjin, China.ORCID 0000-0002-4189-0893
Yipu LiuTianjin Medical University Eye Hospital, Tianjin, China.
Biying WangTianjin Medical University Eye Hospital, Tianjin, China.
Bei DuTianjin Medical University Eye Hospital, Tianjin, China.ORCID 0000-0002-0947-1541
Desheng SongTianjin Medical University Eye Hospital, Tianjin, China.
Ruihua WeiTianjin Medical University Eye Hospital, Tianjin, China rwei@tmu.edu.com.
Tianjin Medical University Eye Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsTo compare the effects of repeated low-level red light (RLRL) treatment on axial length growth and refractive error changes in myopic and premyopic children.

methodsSubjects were assigned randomly to four subgroups: myopia-RLRL group (M-RL), myopia-control group (M-C), premyopia-RLRL group (PM-RL) and premyopia-control group (PM-C). Subjects in the RLRL group completed a 12-month treatment composed of a 3 min RLRL treatment session twice daily, with an interval of at least 4 hours, for 7 days per week. Visits were scheduled before and at 1-month, 3-month, 6-month, 9-month and 12-month follow-up after the treatment. Repeated-measures analysis of variance was used to compare the spherical equivalent refractive errors (SE) and axial length (AL) changes between the groups across the treatment period.

resultsAfter 12 months of treatment, in the myopia group, SE and AL changes were -0.078±0.375 D and 0.033±0.123 mm for M-RL and -0.861±0.556 D and 0.415±0.171 mm for M-C; in the premyopia group, the progression of SE and AL was -0.181±0.417 D and 0.145±0.175 mm for PM-RL and -0.521±0.436 D and 0.292±0.128 mm for PM-C. PM-RL indicated a lower myopia incidence than PM-C (2.5% vs 19.4%). Additionally, the percentage of AL shortening in the M-RL was higher than that in the PM-RL before the 9-month follow-up.

conclusionRLRL effectively delayed myopia progression in children with myopia and reduced the incidence of myopia in premyopic children. Moreover, RLRL exhibited a stronger impact on myopic children compared with premyopic individuals.

Indexed as

Axial Length, EyeMyopiaRed LightRefraction, OcularAdolescentChildDisease ProgressionFemaleFollow-Up StudiesHumansMaleTreatment OutcomeVisual AcuityOptics and RefractionPosterior ChamberProspective StudiesTreatment Medical

Identifiers

PMID38631861
PMCPMC11347203
OpenAlexW4394904617

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.