Evidence map›Paper›PMID 33731364›Full record

ArticleThe British journal of ophthalmology2022

Myopia control effect of defocus incorporated multiple segments (DIMS) spectacle lens in Chinese children: results of a 3-year follow-up study.

Carly Sy Lam, Wing Chun Tang, Paul H Lee, Han Yu Zhang, Hua Qi, Keigo Hasegawa, Chi Ho To

Registry-linked trialOpen access · hybridAbstract readControlled Clinical Trial
In one paragraph

Article in The British journal of ophthalmology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06717035 (Evaluation of Performance of MiYOSMART Photochromic and Clear Spectacle Lenses in Myopic Children.), which is not on this map. Cited by 119 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
119citing papers in PubMed, 7 pooled it
20.0field-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.

NCT06717035 nanot yet recruitingnot on this mapstarted 2025, after this paper: background citation

Evaluation of Performance of MiYOSMART Photochromic and Clear Spectacle Lenses in Myopic Children.

TypeinterventionalSponsorSingapore National Eye CentreRan2025 to 2027Enrolled202ConditionsMyopia, Myopia ProgressionArmsEYE001
3 · Its place in the literature

Who cites it

119 citing papers in PubMed, 7 syntheses or guidelines pooled it, 180 citations in OpenAlex.

  1. Efficacy of spectacle lenses specifically designed for myopia control: systematic review and meta-analysis.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
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  11. 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
  12. Defocus Incorporated Multiple Segments (DIMS) spectacle lenses in UK children: Outcomes from a 2-year multi-site interventional trial.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025
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  19. Spectacle lenses for control of myopia progression in children.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Review
  20. Article

59 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 2 institutions in 2 countries.

Carly Sy LamCentre for Myopia Research, School of Optometry, The Hong Kong Polytechnic University, Kowloon, Hong Kong carly.lam@polyu.edu.hk.ORCID 0000-0002-6808-5018
Wing Chun TangCentre for Myopia Research, School of Optometry, The Hong Kong Polytechnic University, Kowloon, Hong Kong.
Paul H LeeSchool of Nursing, The Hong Kong Polytechnic University, Kowloon, Hong Kong.ORCID 0000-0002-5729-6450
Han Yu ZhangCentre for Myopia Research, School of Optometry, The Hong Kong Polytechnic University, Kowloon, Hong Kong.ORCID 0000-0003-4932-1887
Hua QiTechnical Research & Development Department, Hoya Corporation Vision Care Section, Shinjuku-ku, Tokyo, Japan.
Keigo HasegawaTechnical Research & Development Department, Hoya Corporation Vision Care Section, Shinjuku-ku, Tokyo, Japan.
Chi Ho ToCentre for Myopia Research, School of Optometry, The Hong Kong Polytechnic University, Kowloon, Hong Kong.
Hong Kong Polytechnic University · HKHoya (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo determine myopia progression in children who continued to wear the defocus incorporated multiple segments (DIMS) lenses or switched from single vision (SV) to DIMS lenses for a 1-year period following a 2-year myopia control trial.

methods128 children participated in this study. The children who had worn DIMS lenses continued to wear DIMS lenses (DIMS group), and children who had worn SV lenses switched to wear DIMS lenses (Control-to-DIMS group). Cycloplegic spherical equivalent refraction (SER) and axial length (AL) were measured at 6-month interval. Historical controls were age matched to the DIMS group at 24 months and used for comparing the third-year changes.

resultsOver 3 years, SER and AL changes in the DIMS group (n=65) were -0.52±0.69D and 0.31±0.26 mm; these changes were not statistically significant over time (repeated measures analysis of variance, p>0.05).SER (-0.04±0. 38D) and AL (0.08±0.12 mm) changes in the Control-to-DIMS group (n=55) in the third year were less compared with the first (mean difference=0.45 ± 0.30D, 0.21±0.11 mm, p<0.001) and second (0.34±0.30D, 0.12±0.10 mm, p<0.001) years.Changes in SER and AL in both groups over that period were significantly less than in the historical control group (DIMS vs historical control: mean difference=-0.18±0.42D, p=0.012; 0.08±0.15 mm, p=0.001; Control-to-DIMS versus historical control: adjusted mean differences=-0.30±0.42D, p<0.001; 0.12±0.16 mm, p<0.001).

conclusionsMyopia control effect was sustained in the third year in children who had used the DIMS spectacles in the previous 2 years and was also shown in the children switching from SV to DIMS lenses.

Indexed as

EyeglassesMyopiaChildChild, PreschoolChinaDisease ProgressionFollow-Up StudiesHumansRefraction, Ocularchild health (paediatrics)clinical trial

Identifiers

PMID33731364
PMCPMC9340033
OpenAlexW3139120370

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.