Evidence map›Paper›PMID 33335383›Full record

ArticleClinical ophthalmology (Auckland, N.Z.)2020

Dry Eye Disease Association with Computer Exposure Time Among Subjects with Computer Vision Syndrome.

María Del Rosario Sánchez-Valerio, Karim Mohamed-Noriega, Irma Zamora-Ginez, Blanca Guadalupe Baez Duarte, Verónica Vallejo-Ruiz

Open access · goldAbstract read
In one paragraph

Article in Clinical ophthalmology (Auckland, N.Z.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 3 pooled it
6.8field-weighted citation impact, top 2% 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

38 citing papers in PubMed, 3 syntheses or guidelines pooled it, 65 citations in OpenAlex.

  1. Pooled it
  2. The effect of digital devices screen use on intraocular pressure: A systematic review and meta-analysis.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Pooled it
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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

5 authors at 3 institutions in 1 country.

María Del Rosario Sánchez-ValerioFaculty of Medicine, Autonomous University of Puebla, Puebla, Puebla, México.ORCID 0000-0003-0231-9915
Karim Mohamed-NoriegaAutonomous University of Nuevo León (UANL), Faculty of Medicine, University Hospital "José E. Gonzalez, Ophthalmology Department, Monterrey, México.ORCID 0000-0001-8252-5924
Irma Zamora-GinezFaculty of Medicine, Autonomous University of Puebla, Puebla, Puebla, México.ORCID 0000-0003-0403-2969
Blanca Guadalupe Baez DuarteFaculty of Medicine, Autonomous University of Puebla, Puebla, Puebla, México.ORCID 0000-0002-2311-8605
Verónica Vallejo-RuizEastern Biomedical Research Center, Mexican Social Security Institute (IMSS), Metepec, Puebla, México.ORCID 0000-0001-7884-1406
Benemérita Universidad Autónoma de Puebla · MXMexican Social Security Institute · MXUniversidad Autónoma de Nuevo León · MX

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo assess the time of exposure to the computer and dry eye disease (DED) in subjects with computer vision syndrome (CVS).

methodsA cross-sectional study was conducted in office workers, computer users of both sexes, with an age range of 18-45 years without comorbidities; we included 108 subjects divided into 3 groups according to the time of computer exposure in hours per day (H/D): <4 (n = 23), 4 -7.9 (n = 49), >8 (n = 39). A specific questionnaire was applied to them on the exposure time and the type of visual display terminal (VDT) used, as well as the computer vision symptoms scale (CVSS17). DED was diagnosed with the Ocular Surface Disease Index (OSDI). Ocular surface damage and signs of DED were evaluated with the tear rupture time test (TBUT), the integrity of the ocular surface by ocular surface staining (OSS) and the production of the aqueous basal tear film using the Schirmer test.

resultsAverage computer exposure time, measured differently, was positively correlated with DED development. The computer exposure time measured in hours per year and TBUT showed a significant negative correlation (p <0.001) (rho -0.463). Years of computer exposure and staining of the ocular surface showed a significant positive correlation (p <0 0.001; rho 0.404). The accumulated exposure time was negatively correlated with TBUT (p <0.001; rho -0.376) and positively with OSS (p <0.001; rho 0.433). Schirmer test did not correlate with computer exposure time.

conclusionThe prolonged time of exposure to the computer in subjects with CVS was significantly correlated with the DED tests, in the different ways of measuring it; but not with the Schirmer test.

Indexed as

computer vision syndromedry eye disease.

Identifiers

PMID33335383
PMCPMC7737630
OpenAlexW3110939505

What OpenQuestion holds

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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.