ArticleJournal of occupational health2019
Blind working time in visual display terminal users.
Article in Journal of occupational health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
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Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Meta-analysis of visual fatigue based on visual display terminals.BMC ophthalmology · 2024Pooled it
- A scoping review of integrated blink analysis technologies for ocular surface diseases.Eye (London, England) · 2026Review
- Association between ocular diseases and screen time and sedentary time derived from job-exposure matrices.Scientific reports · 2024Article
- Computer Vision Syndrome: An Ophthalmic Pathology of the Modern Era.Medicina (Kaunas, Lithuania) · 2023Review
- Review on the possible pathophysiological mechanisms underlying visual display terminal-associated dry eye disease.Acta ophthalmologica · 2022Review
- Dry eye disease survey among schoolteachers and children using visual display terminals during COVID-19 lockdown-CODE study (Medical journal, Armed Forces India · 2022Article
- The Relationship Between Dry Eye Disease and Digital Screen Use.Clinical ophthalmology (Auckland, N.Z.) · 2021Review
- Article
- Blind working time in visual display terminal users.Journal of occupational health · 2019Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesBlind working (BW) time (time during which vision is not required), the interblink interval (IBI), and subjective symptoms were investigated in workers using visual display terminals (VDTs). SUBJECTS AND
methodsTo investigate BW time, 10 VDT users were instructed to close their eyes when this did not interfere with their work. They were video recorded for 60 minutes using a webcam attached to the display on which they were engaged in regular data input tasks, and BW time was measured. The values of the IBI during the final 20 minutes of the BW experiment and during the final 20 minutes of normal working without BW were compared. A questionnaire was administered to investigate subjective symptoms using a visual analogue scale.
resultsThe total BW time during the final 20-minute period was 20.6-121.0 seconds (1.7%-10.1%). The mean IBI of 5.5 ± 4.5 seconds during the BW experiment was not significantly different from that of 6.2 ± 5.6 seconds during normal working, and the mean of three IBIs immediately after BW during the BW experiment was 2.7 ± 1.0 seconds, significantly shorter than the 6.2 ± 5.6 seconds during normal working. Dry eye, ocular fatigue, and blurred vision during normal working improved when subjects were engaged in BW.
conclusionsVDT users could engage in BW during VDT work, the IBI was shorter immediately after BW, and subjective symptoms improved. These results suggest that BW may provide a more effective measure for the management of VDT working time.
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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.