Optimal correction in spectacles: Intervention effects on eyestrain and musculoskeletal discomfort among postal workers
2014 (English)In: Work: A journal of Prevention, Assesment and rehabilitation, ISSN 1051-9815, E-ISSN 1875-9270, Vol. 47, no 3, 329-337 p.Article in journal (Refereed) Published
BACKGROUND: The static posture of postal workers when sorting mail can lead to musculoskeletal discomfort. Research has shown a connection between eyestrain and upper-body musculoskeletal discomfort in general, including postal workers. A previous study of postal workers found that most of those with eye strain were in need of a new correction in their existing spectacles.
OBJECTIVE: Evaluate intervention effects on eyestrain and musculoskeletal discomfort with new spectacles for postal workers.
METHODS: Postal workers subjectively reported eyestrain, musculoskeletal discomfort and their opinions of the visual environment via questionnaires pre- and post-intervention. After an eye examination the postal workers were divided into two groups: those who needed new spectacles and those who did not.
RESULTS: Those who needed new spectacles showed a higher prevalence of eyestrain and musculoskeletal discomfort pre-intervention. Post-intervention, the postal workers rated their vision better and the average eyestrain and musculoskeletal discomfort decreased for both groups. These workers also experienced a decrease in discomfort on the left (static) side of the neck while sorting mail.
CONCLUSION: An intervention providing the optimal correction reduces eyestrain and decreases musculoskeletal discomfort, especially from the neck.
Place, publisher, year, edition, pages
2014. Vol. 47, no 3, 329-337 p.
Mail, work posture, neck, static, dynamic, visual ergonomics, lenses, glasses
Production Engineering, Human Work Science and Ergonomics
IdentifiersURN: urn:nbn:se:kth:diva-137426DOI: 10.3233/WOR-131773ISI: 000333080700006ScopusID: 2-s2.0-84900434474OAI: oai:DiVA.org:kth-137426DiVA: diva2:678952
QC 201401292013-12-132013-12-132014-04-22Bibliographically approved