Evidence map›Paper›PMID 35327714›Full record

ArticleChildren (Basel, Switzerland)2022

The Changes in Visual Acuity Values of Japanese School Children during the COVID-19 Pandemic.

Shingo Noi, Akiko Shikano, Natsuko Imai, Fumie Tamura, Ryo Tanaka, Tetsuhiro Kidokoro, Mari Yoshinaga

Open access · goldAbstract read
In one paragraph

Article in Children (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

5 citing papers in PubMed, 9 citations in OpenAlex.

  1. Increasing myopia in Scotland at age of 3.5-5.5 years: A retrospective epidemiological study.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025
    Article
  2. Article
  3. Progression of myopia among school-aged children in Guangzhou, China.International journal of ophthalmology · 2025
    Article
  4. Article
  5. Article
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 1 country.

Shingo NoiResearch Institute for Health and Sport Science, Nippon Sport Science University, Tokyo 158-8508, Japan.ORCID 0000-0002-1902-7735
Akiko ShikanoResearch Institute for Health and Sport Science, Nippon Sport Science University, Tokyo 158-8508, Japan.
Natsuko ImaiDoctoral Program in Health and Sport Science, Nippon Sport Science University, Tokyo 158-8508, Japan.
Fumie TamuraMasterl Program in Health and Sport Science, Nippon Sport Science University, Tokyo 158-8508, Japan.
Ryo TanakaResearch Institute for Health and Sport Science, Nippon Sport Science University, Tokyo 158-8508, Japan.
Tetsuhiro KidokoroResearch Institute for Health and Sport Science, Nippon Sport Science University, Tokyo 158-8508, Japan.
Mari YoshinagaFaculty of Pharmaceutical Science, Showa Pharmaceutical University, Tokyo 194-8543, Japan.ORCID 0000-0002-2618-7841
Nippon Sport Science University · JPOsaka University of Health and Sport Sciences · JPShowa Pharmaceutical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The coronavirus disease 2019 (COVID-19) pandemic may result in a greater decrease in visual acuity (VA) among Japanese children. Our study aimed to examine Japanese children’s VA during the pandemic. VA data were collected using standard eye tests during school health check-ups conducted in 2019 and 2020 on 5893 children, in seven public elementary schools and four public junior high schools in Tokyo, Saitama, Kanagawa, and Shizuoka. VA changes were statistically analyzed. The relationship between the survey year and poor VA yielded a significant regression coefficient for the surveyed years in elementary and junior high school students. The 2019 VA value and VA change from 2019 to 2020 demonstrated a significant regression coefficient in elementary school students with VAs of “B (0.7−0.9)” and “C (0.3−0.6)”, and junior high school students with VAs of “B”, “C”, and “D (<0.3)”. An analysis of the relationship between the survey year and eye laterality of VA yielded a significant regression coefficient in the surveyed years for elementary (OR, 1.516; 95% CI, 1.265−1.818) and junior high school students (OR, 1.423; 95% CI, 1.136−1.782). Lifestyle changes during the COVID-19 pandemic might have affected VA and eye laterality in Japanese children.

Indexed as

childrenJapanmyopianew coronavirus infectionscreen time

Identifiers

PMID35327714
PMCPMC8947095
OpenAlexW4214860125

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.