Using data derived from eight hours work at a visual display terminal, a model for evaluating visual fatigue under LED light sources has been developed based on five ophthalmological parameters and three physiological signals. A simplified model based on one ophthalmological parameter and one physiological signal is also proposed. Both models show a high correlation with subjective data and are confirmed by a validation experiment. The results also show that the visual fatigue occurring after eight hours of visual display terminal work under LED lighting is rather small.
Get full access to this article
View all access options for this article.
References
1.
WangQXuHGongRCaiJ. Investigation of visual fatigue under LED lighting based on reading task. Optik-International Journal for Light and Electron Optics2015; 126: 1433–1438.
2.
UchinoMUchinoYDogruMKawashimaMYokoiNKomuroASonomuraYKatoHKinoshitaSSchaumbergD ATsubotaK. Dry eye disease and work productivity loss in visual display users: The Osaka study. American Journal of Ophthalmology2014; 157: 294–300.
3.
TomeiGRosatiMVMartiniATarsitaniLBiondiMPancheriPMontiCCiarroccaMCapozzellaATomeiF. Assessment of subjective stress in video display terminal workers. Industrial Health2006; 44: 291–295.
4.
Tamez-GonzálezSOrtiz-HernándezLMartínez-AlcántaraSMéndez-RamírezI. Health hazards associated with the use of video display terminals. Salud Pública de México2003; 45: 171–180.
5.
XiaLTuYLiuLWangYPengSKnoopMHeynderickxI. A study on overhead glare in office lighting conditions. Journal of the Society for Information Display2011; 19: 888–898.
6.
LambooijMFortuinMHeynderickxIIJsselsteijnW. Visual discomfort and visual fatigue of stereoscopic displays: a review. Journal of Imaging Science and Technology2009; 53: 30201-1–30201-14.
7.
ParkMCMunS. Overview of measurement methods for factors affecting the human visual system in 3d displays. Journal of Display Technology2015; 11: 877–888.
8.
WangYZhongXZhangYTuYWangLChenYZhangCZhouW. Visual fatigue following long-term visual display terminal work under different light sources. Lighting Research and Technology2016. DOI: 10.1177/1477153516677559.
9.
CohenJ. Statistical Power Analysis for the Behavioural Sciences, New York: Academic Press, 1969, pp. 278–280.
10.
TamuraFShishikuraJMukaiYKanekoY. Arterial oxygen saturation in severely disabled people: Effect of oral feeding in the sitting position. Dysphagia1999; 14: 204–211.
11.
BlehmCVishnuSKhattakAMitraSYeeRW. Computer vision syndrome: A review. Survey of Ophthalmology2005; 50: 253–262.
12.
YaginumaYYamadaHNagaiH. Study of the relationship between lacrimation and blink in VDT work. Ergonomics1990; 33: 799–808.
