Hans-Henrik Bjorset1, Arne Aarås2 and Gunnar Horgen3
1 K.O. Thomesveg 11, N-7033 Trondheim, Norway
2 Alcatel STK AS. P.O. Box 60 ∅kem, N-0508 Oslo, Norway
3 Buskerud College, Department of Optometry, P.O. Box 235,
N-3601 Kongsberg, Norway
A total renovation in two buildings at Alcatel Telecom Norway, Oslo, was carried out in 1991-92. During this process, unfortunately non-ergonomically luminaires were mounted. After a short periode of time the VDU operators reported visual problems in terms of bad lighting conditions, serious glare problems, eye fatigue, blurred vision and increased sensitivity to light. Headache was also reported. It was therefore decided to carry out a study of these problems and in particularly look for a relationship between the visual discomfort and the lighting conditions. First, the visual and lighting conditions were examined in a laboratory study ( Bj∅rset and Aarås 1996). At the same period of time another laboratory study was performed, showing that there was a significant lower static trapezius load for sitting position with support of the forearms on the table top compared with sitting and standing without such support. These results were valid for data entry work when using keyboard and mouse ( Aarås & al 1997). Therefore, multipisciplinary team was established to carry out a longitudinal epidemiological study, where the effect of introducing ergonomically luminaires and workplaces should be evaluated. In addition eye examination should be performed and optometric corrections given if needed. The three inverentions were implemented in a serial way.
Will improved lighting conditions reduce visual discomfort for the VDU operators?