Evidence map›Paper›PMID 39422837›Full record

ArticleOphthalmology and therapy2024

The Macular Choroidal Thickness in Danish Children with Myopia After Two-Year Low-Dose Atropine and One-Year Wash-Out: A Placebo-Controlled, Randomized Clinical Trial.

Niklas C Hansen, Anders Hvid-Hansen, Toke Bek, Flemming Møller, Nina Jacobsen, Line Kessel

Erratum issued Registry-linked trialAbstract read
In one paragraph

Article in Ophthalmology and therapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT03911271 (Low-dose Atropine for the Prevention of Myopia Progression in Danish Children - a Randomized, Double-masked, Multicenter, 36-month Prospective 1), which is not on this map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing 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.

NCT03911271 phase2completednot on this map

Low-dose Atropine for the Prevention of Myopia Progression in Danish Children - a Randomized, Double-masked, Multicenter, 36-month Prospective 1:1:1 Study of Safety and Efficacy of 0.1% Atropine Loading Dose to Single 0.01% Atropine and Placebo

TypeinterventionalSponsorLine KesselRan2019 to 2024Enrolled97ConditionsMyopiaArms0.1% atropine and 0.01% atropine, 0.01% atropine, 0.9% Sodium-chloride
3 · Its place in the literature

Who cites it

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

  1. Pooled it
  2. Effect of 0.01% Atropine on Choroidal Thickness and Ocular Growth in Pre-myopic Children.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
    Trial
  3. Review
  4. Atropine Eye Drops in Childhood Myopia Control: A Review.International journal of medical sciences · 2026
    Review
  5. Article
  6. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Niklas C HansenDepartment of Ophthalmology, Copenhagen University Hospital - Rigshospitalet, Valdemar Hansens Vej 1-23, 2600, Glostrup, Denmark. niklas.cyril.hansen@regionh.dk.ORCID http://orcid.org/0000-0003-1092-4736
Anders Hvid-HansenDepartment of Ophthalmology, Copenhagen University Hospital - Rigshospitalet, Valdemar Hansens Vej 1-23, 2600, Glostrup, Denmark.ORCID http://orcid.org/0000-0002-7325-0217
Toke BekDepartment of Ophthalmology, Aarhus University Hospital, 8200, Aarhus N, Denmark.ORCID http://orcid.org/0000-0002-0409-2534
Flemming MøllerDepartment of Ophthalmology, University Hospital of Southern Denmark, Vejle Hospital, 7100, Vejle, Denmark.ORCID http://orcid.org/0000-0001-9678-2171
Nina JacobsenDepartment of Ophthalmology, Copenhagen University Hospital - Rigshospitalet, Valdemar Hansens Vej 1-23, 2600, Glostrup, Denmark.ORCID http://orcid.org/0009-0009-9979-3082
Line KesselDepartment of Ophthalmology, Copenhagen University Hospital - Rigshospitalet, Valdemar Hansens Vej 1-23, 2600, Glostrup, Denmark.ORCID http://orcid.org/0000-0002-9375-1510

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionOur aim in this work was to investigate the macular choroidal thickness (ChT) changes in 6-12-year-old Danish children with myopia during 2 years of low-dose atropine treatment and 1-year wash-out vs. placebo in an investigator-initiated, placebo-controlled, double-blind randomized clinical trial.

methodsNinety-seven participants were randomized to either 0.01% for 2 years, 0.1% loading dose for 6 months followed by 0.01% for 18 months, or placebo, then a 1-year wash-out. The primary outcome was ChT in the sub-foveal and inner and outer superior, nasal, inferior, and temporal sectors. The secondary outcome was axial length (AL). Outcomes were measured at baseline and 6, 12, 24, and 36 months. One-way analysis of variance was used to detect baseline ChT differences between AL-stratified groups (< 24 mm, 24-25 mm, or > 25 mm). To determine the longitudinal changes in ChT and its effect on AL, all eyes were included in linear mixed modeling with individual eyes nested in the study ID as a random effect.

resultsLonger eyes had significantly thinner ChT in all choroidal sectors (adj-P < 0.01) at baseline. There was no statistically significant change in any ChT sector after 3 years in the placebo group. Sub-foveal and nasal ChT in the 0.1% loading dose and 0.01% group were not significantly different from placebo after 2-year treatment. In the placebo group, a 1-mm increase in AL was significantly associated with a 47-µm thinner nasal ChT after 3 years (95% confidence interval (CI): - 55; - 38, adj-P < 0.001). A 10-µm thicker nasal choroid at baseline was associated with 0.13 mm (95% CI: 0.009; 0.017, adj-P < 0.001) less 3-year axial elongation.

conclusionsThe ChT in Danish children with myopia remained stable over the 3-year follow-up. A thinner choroid at myopia onset might predispose to increased axial elongation. Treatment with 0.01% atropine did not change the ChT. We speculate that low-dose atropine does not primarily reduce myopia progression via a choroidal mechanism.

trial registrationClinicalTrials.gov identifier, NCT03911271.

Indexed as

AtropineAxial lengthChoroidChoroidal thicknessEye dropsMaculaMyopiaMyopia control

Identifiers

PMID39422837
PMCPMC11564477

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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.