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Eye-neck interactions triggered by visually deficient computer work
Univ Gävle, Ctr Musculoskeletal Res, Dept Occupat & Publ Hlth Sci, Fac Hlth & Working Life, S-80176 Gavle, Sweden..
Örebro Cty Council, Örebro, Sweden.;Orebro Univ Hosp, Rehabil Res Ctr, Orebro, Sweden.ORCID iD: 0000-0002-6364-2145
Örebro Univ Hosp, Rehabil Res Ctr, Örebro, Sweden.ORCID iD: 0000-0002-6703-7575
2011 (English)In: Work: A journal of Prevention, Assesment and rehabilitation, ISSN 1051-9815, E-ISSN 1875-9270, Vol. 39, no 1, 67-78 p.Article in journal (Refereed) Published
Abstract [en]

Objectives: To study the joint occurrence of eye-and-neck/scapular area symptoms and their association with occupational risk factors in a cross-sectional sample of professional information technology users.

Study population: The participants consisted of 3,971 employees who worked with computers for a minimum of one hour a day. 2,551 (73%) were men and 945 (27%) women, with an age range of 18 up to 64 years. The mean age was 38.1 (SD = 10.7) for men and 37.6 (SD = 12.0) for the women. The measures were obtained via a self-administered survey in combination with a visual examination conducted by an optometrist.

Methods: Two complementary logistic regression analyses with forced entry was conducted on n = 3,496 (88% adjusted response rate) cases. The effect of ocular symptoms on the risk of reporting musculoskeletal symptoms, or vice versa, was examined first in two separate binominal logistic regression analyses. Age, Gender, Near work variable and Visual functioning variables were included in these analyzes. Variables associated with the risk of developing an increase in either symptom category were also examined in two additional binomial logistic regression analyses.

Results: Exposure to spectacles (single vision, multifocal, or progressive correction) in combination with a visual acuity < 1 surfaced as a key mediator of symptoms from the neck/scapular area (p < 0.01). A vergence disparity (uncompensated vergence error) similarly was associated with an augmented risk of developing an increase in neck/scapular area symptoms (p < 0.05). The most influential risk factor for neck/scapular area symptoms were ocular symptoms and vice versa (p < 0.0001).

Conclusions: The results support the hypothesis which postulates that eye-neck/scapular area symptoms interaction may be due to a functional coupling from and between the eye-neck/scapular area muscles [28].

Place, publisher, year, edition, pages
IOS Press, 2011. Vol. 39, no 1, 67-78 p.
Keyword [en]
Asthenopia, eyestrain, gaze-control, musculoskeletal, neck pain
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:oru:diva-57576DOI: 10.3233/WOR-2011-1152ISI: 000292543000009PubMedID: 21673430ScopusID: 2-s2.0-79960774196OAI: oai:DiVA.org:oru-57576DiVA: diva2:1093620
Available from: 2017-05-08 Created: 2017-05-08 Last updated: 2017-05-08Bibliographically approved
In thesis
1. Visual, musculoskeletal, and balance symptoms in people with visual impairments
Open this publication in new window or tab >>Visual, musculoskeletal, and balance symptoms in people with visual impairments
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Background: Worldwide, about 300 million people have some kind of visual impairment (VI). Most people with VI are in the older age range, as visual deficits increase with age. It is not unusual that people with VI suffer both from neck pain or scapular area symptoms and reduced balance, which they consider to be symptoms of old age. However, their symptoms may not be attributable to age, but rather to poor vision.

Aims: First, to identify associations between visual, musculoskeletal and balance symptoms in people engaging in near work every day and in people with VI. Second, to design and validate a suitable instrument for gathering information about visual, musculoskeletal and balance symptoms in people with VI. Third, to explore differences in perceived symptoms between VI patients and people with normal vision in cross-sectional studies and by following a group of age-related macular degeneration (AMD) patients in a longitudinal study. Fourth, to identify the most specific predictors of higher levels of visual, musculoskeletal and balance symptoms.

Methods: A specific instrument was developed: the Visual, Musculoskeletal and Balance symptoms (VMB) questionnaire. Patients with VI were compared to an age-matched reference group with normal vision in three different studies in order to detect differences in self-reported symptoms between the groups. In addition, a follow-up was conducted in a group of AMD patients.

Results: Patients with VI reported higher levels of VMB symptoms than controls, and this increased over time. Visual deficits and the need for visual enhancement increased the risk of VMB symptoms.

Conclusion: People with VI run a potentially higher risk of VMB symptoms than age-matched controls.

Place, publisher, year, edition, pages
Örebro: Örebro University, 2017. 76 p.
Series
Örebro Studies in Medicine, ISSN 1652-4063 ; 162
Keyword
Visual impairment, musculoskeletal symptoms, balance symptoms, visual enhancing aids, age-matched controls
National Category
Surgery
Research subject
Surgery
Identifiers
urn:nbn:se:oru:diva-57087 (URN)978-91-7529-192-5 (ISBN)
Public defence
2017-06-02, Örebro universitet, Campus USÖ, hörsal C3, Södra Grev Rosengatan 32, Örebro, 13:00 (Swedish)
Opponent
Supervisors
Available from: 2017-04-18 Created: 2017-04-18 Last updated: 2017-05-08Bibliographically approved

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