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Author (up) Bullough, J.D.; Bierman, A.; Rea, M.S.
Title Evaluating the Blue-Light Hazard from Solid State Lighting Type Journal Article
Year 2017 Publication International Journal of Occupational Safety and Ergonomics : JOSE Abbreviated Journal Int J Occup Saf Ergon
Volume 25 Issue 2 Pages 311-320
Keywords Human Health
Abstract Purpose New light sources including light emitting diodes (LEDs) have elicited questions about retinal damage, including the blue-light hazard. Some organizations have recommended avoiding using LEDs with correlated color temperatures (CCTs) exceeding 3000 K, since they tend to produce greater short-wavelength energy. This paper provides quantitative comparisons among light sources and use cases as they affect blue-light hazard. Methods The spectral radiant power characteristics of incandescent, fluorescent, LED and daylight sources were evaluated in terms of blue-light hazard using standard procedures for phakic, aphakic and pseudophakic eyes. Results Under most use cases, LEDs do not exhibit greater risk for blue-light hazard than other sources (e.g., incandescent). Because they generally produce little-to-no ultraviolet energy, LEDs often present less risk to aphakic eyes. Conclusions LEDs present no special concerns for blue-light hazard over some other common sources in typical use cases because photophobic responses limit exposure to bright sources. Where photophobic responses might not occur (e.g., eye surgery patients or premature infants) or where individuals suppress these responses (e.g., stage actors), caution is necessary. Evidence remains inconsistent regarding the risk of human retinal damage from long-term exposures to light insufficient to reach acute blue-light hazard thresholds.
Address a Lighting Research Center , Rensselaer Polytechnic Institute , US
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1080-3548 ISBN Medium
Area Expedition Conference
Notes PMID:28876164 Approved no
Call Number LoNNe @ kyba @; GFZ @ kyba @ Serial 1720
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