Evidence map›Paper›PMID 32460315›Full record

Trial reportInvestigative ophthalmology & visual science2020

Defocus Incorporated Multiple Segments Spectacle Lenses Changed the Relative Peripheral Refraction: A 2-Year Randomized Clinical Trial.

Han Yu Zhang, Carly Siu Yin Lam, Wing Chun Tang, Myra Leung, Chi Ho To

2 registry-linked trialsAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Investigative ophthalmology & visual science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 61 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 1 pooled it
–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.

NCT05532774 naunknown statusnot on this mapstarted 2022, after this paper: background citation

Efficacy and Safety of Defocusing Frame Glasses With Artificial Intelligence in Children and Adolescents Controlling Myopia Progression: A Multicenter, Randomized, Parallel-Controlled Clinical Trial

TypeinterventionalSponsorShanghai Eye Disease Prevention and Treatment CenterRan2022 to 2024Enrolled138ConditionsMyopiaArmsAI defocusing frame glasses
NCT05740904 nacompletednot on this mapstarted 2023, after this paper: background citation

Efficacy and Safety of New Defocus Spectacle Lens in Preventing Progression of Myopia Compared With the Conventional Single-vision Spectacle Lens: a Randomized Controlled Trial Among Chinese Children

TypeinterventionalSponsorZhongshan Ophthalmic Center, Sun Yat-sen UniversityRan2023 to 2024Enrolled174ConditionsMyopiaArmsNew defocus spectacle lenses, Convenional aspheric single-vision spectacle lenses
3 · Its place in the literature

Who cites it

61 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Myopia control efficacy of individualised ocular refraction customisation spectacle lenses: A 2-year follow-up study.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025
    Trial
  3. Trial
  4. Myopia control using a modified optical defocus soft contact lens in schoolchildren-A 12-month randomised double masked control trial.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025
    Trial
  5. Trial
  6. Trial
  7. Trial
  8. Article
  9. Eight-Year Post-Trial Outcomes of a Two-Year Clinical Trial of DIMS Spectacle Lenses.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Article
  10. Spectacle lenses for control of myopia progression in children.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Review
  11. Article
  12. Nasotemporal Asymmetry in Ocular Biometry as a Biomarker for Myopia Progression in Chinese Children.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Article

1 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

5 authors.

Han Yu Zhang,.
Carly Siu Yin Lam,.
Wing Chun Tang,.
Myra Leung,.
Chi Ho To,.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To compare changes in relative peripheral refraction (RPR) associated with myopia progression in myopic children wearing Defocus Incorporated Multiple Segments (DIMS) lenses and single vision (SV) spectacle lenses over 2 years. Methods: A 2-year double-blind, randomized controlled trial was conducted on 183 myopic children. Subjects were allocated to either wearing DIMS (n = 93) or SV spectacle lenses (n = 90). Peripheral refraction at 10°, 20°, and 30° of the nasal (10N, 20N, 30N) and temporal (10T, 20T, 30T) retinal eccentricities, central refraction, and axial length after cycloplegia were monitored every 6 months. Results: DIMS group showed symmetrical peripheral myopic shifts between the nasal and temporal retina (comparing myopic shifts between the nasal and temporal retina, the difference between the corresponding eccentricities were nonclinically significance). SV group showed asymmetrical peripheral myopic shifts between the nasal and temporal retina, with more myopic shifts (all P ≤ 0.001) at 10T (-0.32 ± 0.62 diopters [D]), at 20T (-0.69 ± 0.95 D), and 30T (-0.85 ± 1.52 D). No significant changes in RPR spherical equivalent (M) were noted in the DIMS group, whereas significant increases (all P < 0.0001) in hyperopic RPR M were observed at 10N (0.27 ± 0.45 D), 20N (0.75 ± 0.72 D), and 30N (0.98 ± 0.76 D) in the SV group. Conclusions: Wearing DIMS lenses resulted in a significantly different peripheral refraction profile and RPR changes, as well as significant myopia control effects when compared with SV lenses. Myopia control adopting myopic defocus in the midperiphery influenced peripheral refraction and slowed central myopia progression, most likely through alteration of overall retinal shape.

Indexed as

EyeglassesRefraction, OcularAdolescentChildDouble-Blind MethodEquipment DesignFemaleHumansMaleMyopia, DegenerativeTime Factors

Identifiers

PMID32460315
PMCPMC7405698

What OpenQuestion holds

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Registered trials

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.