Evidence map›Paper›PMID 29524061›Full record

ArticleJapanese journal of ophthalmology2018

The effect of orthokeratology on axial length elongation in children with myopia: Contralateral comparison study.

Miri Na, Aeri Yoo

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Japanese journal of ophthalmology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 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.

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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  4. Effect of Switching Myopia Control Strategies on Axial Elongation in Children with Poor Response to Highly Aspherical Lenslet Therapy.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026
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  9. IMI 2023 Digest.Investigative ophthalmology & visual science · 2023
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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

2 authors.

Miri NaDepartment of Ophthalmology, Saevit Eye Hospital, 1065, Jungang-ro, Ilsandong-gu, Goyang, Gyeonggi-do, 10447, Republic of Korea.
Aeri YooDepartment of Ophthalmology, Saevit Eye Hospital, 1065, Jungang-ro, Ilsandong-gu, Goyang, Gyeonggi-do, 10447, Republic of Korea. ell0623@hanmail.net.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the effectiveness of the orthokeratology (OK) lens slowing myopic progression compared with no intervention in pediatric eyes

methodsA retrospective review of medical records was performed on 45 monocular myopic subjects 7 to 13 years of age who were treated with monocular ortho-k lens and followed-up for more than 12 months. The monocular myopia in the subjects' eyes was -0.75 to -4.25 D (diopter), and near emmetropia in the contralateral and with-the-rule astigmatism no greater than -1.50 D. Axial elongation OU, reflecting the progression of myopia was measured at baseline using the same AL-Scan Optical Biometer and compared between the two eyes of each individual every six months for one year in all subjects and for two years in 9 subjects.

resultsAfter 12 months of lens wear, axial length had increased by 0.36 ± 0.23mm in the control eyes (P < 0.001) but showed far less change (+0.07 ± 0.21 mm) in the OK eyes (P = 0.038). The nine subjects followed-up for 2 years showed no axial length change (+0.16 ± 0.25 mm) in the OK eyes (P = 0.095) after 24 months and significant axial length growth (+0.38 ± 0.26 mm; P = 0.002) in the control eyes. Control eyes showed progressive axial length growth throughout the study compared with the one OK lens eye.

conclusionsUsing a contralateral eye study design, which prevented the influence of potential confounding factors, Effectiveness of the OK lens was proved. Myopic progression within a subject was excellent compared with no intervention.

Indexed as

AdolescentAxial Length, EyeChildCorneaCorneal TopographyFemaleFollow-Up StudiesHumansLens, CrystallineMaleMyopiaOrthokeratologic ProceduresRefraction, OcularRetrospective StudiesTime FactorsAxial lengthMyopia controlMyopia progressionOrthokeratology

Identifiers

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Registered trials

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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.