Moderate evidence was observed for : ( 1 ) no effect of workstation adjustment , ( 2 ) no effect of rest breaks and exercise and ( 3 ) positive effect of alternative pointing devices .
For all other interventions mixed or insufficient evidence of effect was observed .
Conclusion : Few high quality studies were found that examined the effects of interventions in the office on musculoskeletal or visual health
Background : The literature examining the effects of workstation , eyewear and behavioral interventions on  musculoskeletal and visual symptoms among computer users is large and heterogeneous .
Methods : A systematic review of the literature used a best evidence synthesis approach to address the general question “ Do office interventions among computer users have an effect on musculoskeletal or visual health ? ”
Musculoskeletal, visual and psychosocial stress in VDU operators before and after multidisciplinary ergonomic interventions. A 6 years prospective study--Part II.
A prospect i ve epidemiological field study covering a 2 years period has earlier been published . The study has a parallel group design with two intervention groups ( T and S ) and one  control group ( C ) of Visual Display Unit ( VDU ) operators . The present paper covers the period from 2 to 6 years of the study . After 3.5 years , the C group got the same intervention in terms of new lighting system , new workplaces and at last an optometric examination and corrections if needed . The C group reported a significant reduction in visual discomfort after interventions while the two groups ( T and S ) continued to report significant reduction of visual discomfort after 6 years . By supporting the forearm on the table top , the C group reported significant reduction of shoulder and neck pain while the T group reported significant reduction in shoulder and back pain after 6 years . Organizational and psychosocial factors at work and outside work did not show any significant changes during the study period
Moderate evidence was observed for : ( 1 ) no effect of workstation adjustment , ( 2 ) no effect of rest breaks and exercise and ( 3 ) positive effect of alternative pointing devices .
For all other interventions mixed or insufficient evidence of effect was observed .
Conclusion : Few high quality studies were found that examined the effects of interventions in the office on musculoskeletal or visual health
Background : The literature examining the effects of workstation , eyewear and behavioral interventions on  musculoskeletal and visual symptoms among computer users is large and heterogeneous .
Methods : A systematic review of the literature used a best evidence synthesis approach to address the general question “ Do office interventions among computer users have an effect on musculoskeletal or visual health ? ”