Evidence map›Paper›PMID 32879767›Full record

Trial reportTranslational vision science & technology2020

Effect of Defocus Incorporated Multiple Segments Spectacle Lens Wear on Visual Function in Myopic Chinese Children.

Carly Siu Yin Lam, Wing Chun Tang, Hua Qi, Hema Radhakrishnan, Keigo Hasegawa, Chi Ho To, W Neil Charman

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Translational vision science & technology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
6.1field-weighted citation impact, top 3% 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

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 84 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. The Impact of Myopia Control Spectacle Lens Designs on Visual Function.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Trial
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Spectacle lenses for control of myopia progression in children.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Review
  9. Combination therapy for myopia control using defocus incorporated multiple segments spectacles in children refractory to higher-dose atropine.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026
    Article
  10. Next-Generation Myopia Control Spectacles Hint at Defocus Opponency Circuits in the Retina.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. IMI-2025 Digest.Investigative ophthalmology & visual science · 2025
    Article
  20. Observational
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 3 institutions in 3 countries.

Carly Siu Yin LamCentre for Myopia Research, School of Optometry, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
Wing Chun TangCentre for Myopia Research, School of Optometry, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
Hua QiTechnical Research and Development Department, Vision Care Section, Hoya Corporation, Tokyo, Japan.
Hema RadhakrishnanFaculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
Keigo HasegawaTechnical Research and Development Department, Vision Care Section, Hoya Corporation, Tokyo, Japan.
Chi Ho ToCentre for Myopia Research, School of Optometry, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
W Neil CharmanFaculty of Biology, Medicine and Health, University of Manchester, Manchester, UK.
Hong Kong Polytechnic University · HKHoya (Japan) · JPUniversity of Manchester · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To compare visual function of myopic children who had worn either defocus incorporated multiple segment (DIMS) spectacle lenses or single vision (SV) spectacle lenses over two years. Methods: We included 160 Chinese myopic (-1 diopter [D] to -5 D) children aged 8 to 13 years in a randomized clinical trial; they wore either DIMS lenses (DIMS; Results: There were no statistically significant differences in the 2-year visual function changes between DIMS and SV groups (repeated measures analysis of variance with group as factor; Conclusions: Although changes in some visual function were shown during 2 years of DIMS lens wear, similar changes were found with SV lens wear. Wear of DIMS spectacle lenses for 2 years does not adversely affect major visual function when children return to SV corrections. Translational Relevance: DIMS spectacle lenses did not cause any adverse effects on visual function.

Indexed as

EyeglassesMyopiaAccommodation, OcularAdolescentChildChinaHumansVision, Ocularmyopiamyopia controlmyopic defocusspectacle lens

Identifiers

PMID32879767
PMCPMC7442864
OpenAlexW3047179004

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.