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Environmental Health and Preventive Medicine
Published in: Environmental Health and Preventive Medicine 1/2017

Open Access 01-12-2017 | Regular Article

The impact of different lenses on visual and musculoskeletal complaints in VDU workers with work-related neck complaints: a randomized controlled trial

Authors: Barbara Cagnie, Kayleigh De Meulemeester, Lieselotte Saeys, Lieven Danneels, Liesbet Vandenbulcke, Birgit Castelein

Published in: Environmental Health and Preventive Medicine | Issue 1/2017

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Abstract

Objectives

The impact of wearing lenses on visual and musculoskeletal complaints in VDU workers is currently unknown. The goal of this study was 1) to evaluate the impact of wearing VDU lenses on visual fatigue and self-reported neck pain and disability, compared to progressive lenses, and 2) to measure the effect of both lenses on head inclination and pressure pain thresholds during the performance of a VDU task.

Methods

Thirty-five eligible subjects were randomly assigned to wear progressive VDU lenses (VDU group) (n = 18) or progressive lenses (P group) (n = 17). They were enquired about visual complaints (VFQ), self-perceived pain (NRS) and disability (NDI) at baseline (with old lenses), and 1 week, 3 months and 6 months after wearing their new lenses. In addition, Forward Head Angle (FHA) and PPTs were assessed during and after a VDU task before and 6 months after wearing the new lenses. A short questionnaire concerning the satisfaction about the study lenses was completed at the end of the study.

Results

In both groups, visual fatigue and neck pain was decreased at 3 and 6 months follow up, compared to baseline. All PPTs were higher during the second VDU task, independent of the type of lenses. The VDU group reported a significantly higher suitability of the lenses for VDU work.

Conclusion

It can be concluded that there is little difference in effect of the different lenses on visual and musculoskeletal comfort. Lenses should be adjusted to the task-specific needs and habits of the participant.
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Metadata
Title
The impact of different lenses on visual and musculoskeletal complaints in VDU workers with work-related neck complaints: a randomized controlled trial
Authors
Barbara Cagnie
Kayleigh De Meulemeester
Lieselotte Saeys
Lieven Danneels
Liesbet Vandenbulcke
Birgit Castelein
Publication date
01-12-2017
Publisher
BioMed Central
Published in
Environmental Health and Preventive Medicine / Issue 1/2017
Print ISSN: 1342-078X
Electronic ISSN: 1347-4715
DOI
https://doi.org/10.1186/s12199-017-0611-1

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