Evidence map›Paper›PMID 34639251›Full record

ArticleInternational journal of environmental research and public health2021

Reduction in Accommodative Response of Schoolchildren by a Double-Mirror System.

Shang-Min Yeh, Chen-Cheng Lo, Chi-Hung Lee, Yu-Jung Chen, Feng-Chi Lin, Shuan-Yu Huang

Abstract read
In one paragraph

Article in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. Trial
  2. Trial
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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

6 authors.

Shang-Min YehDepartment of Optometry, Chung Shan Medical University, Taichung 402, Taiwan.
Chen-Cheng LoDepartment of Optometry, Chung Shan Medical University, Taichung 402, Taiwan.
Chi-Hung LeeDepartment of Electrical Engineering, Feng Chia University, Taichung 407, Taiwan.
Yu-Jung ChenPh.D. Program of Electrical and Communications Engineering, Feng Chia University, Taichung 407, Taiwan.
Feng-Chi LinDepartment of Ophthalmology, Kaohsiung Armed Forced General Hospital, Kaohsiung 802, Taiwan.
Shuan-Yu HuangDepartment of Optometry, Chung Shan Medical University, Taichung 402, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study first proposed the application of a double-mirror system (DMS) to extend viewing distance and investigate the accommodative response of schoolchildren under a DMS.

methodFifty-seven subjects aged between 7 and 12 years old were recruited in this study, and the experiment was divided into two stages. The first stage consisted of a case history inquiry, a refraction state, and a visual function examination. In the second stage, the subjects gazed at an object at distances of 0.4 m, 2.285 m, and through a DMS, respectively, and their accommodative responses were measured using an open-field autorefractor.

resultsThere was no significant difference in the schoolchildren's accommodative response between subjects gazing at an object at 2.285 m (0.14 ± 0.35 D,

conclusionIn this experiment, the results of the children's accommodative response measured at 2.285 m or through a DMS are very similar. The viewing distance can be extended by a DMS, resulting in accommodative relaxation. This result may have potential applications in myopia control.

Indexed as

Accommodation, OcularMyopiaChildHumansVision Testsaccommodative relaxationaccommodative responsedouble-mirror system (DMS)myopia control

Identifiers

PMID34639251
PMCPMC8508213

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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.