1. Division of Ergonomics, School of Technology and Health, KTH Royal Institute of Technology, Huddinge, Sweden
2. Swedish Work Environment Authority, Stockholm, Sweden
3. Lighting Laboratory, Division of Ergonomics, School of Technology and Health, KTH Royal Institute of Technology, Huddinge, Sweden
4. Division of Clinical Neuroscience, Karolinska Institutet, St. Erik Eye Hospital, Stockholm, Sweden
5. St. Erik Eye Hospital, Stockholm, Sweden