Skip to Main content Skip to Navigation
Journal articles

Light-induced retinal damage using different light sources, protocols and rat strains reveals LED phototoxicity

Abstract : To save energy, the European directives from the Eco-design of Energy Using Products (2005/32/CE) has recommended the replacement of incandescent lamps by more economic devices such as Light Emitting Diodes (LEDs). However, the emission spectrum of these devices is enriched in blue radiations, known to be potentially dangerous to the retina. Recent studies showed that light exposure contribute to the onset of early stages of Age related macular degeneration (AMD). Here, we investigate, in albinos and pigmented rats, the effects of different exposure protocols. Twenty-four hours exposure at high luminance was compared to a cyclic (dark/light) exposure at domestic levels for 1 week and 1 month, using different LEDs (Cold-white, blue and green), as well as fluorocompacts bulbs and fluorescent tubes.The data suggest that the blue component of the white-LED may cause retinal toxicity at occupational domestic illuminance and not only in extreme experimental conditions, as previously reported. It is important to note that the current regulations and standards have been established on the basis of acute light exposure and do not take into account the effects of repeated exposure.
Document type :
Journal articles
Complete list of metadatas

Cited literature [24 references]  Display  Hide  Download

https://hal.sorbonne-universite.fr/hal-01383394
Contributor : Gestionnaire Hal-Upmc <>
Submitted on : Tuesday, October 18, 2016 - 3:53:57 PM
Last modification on : Friday, September 18, 2020 - 2:34:57 PM

File

Krigel_Light-induced.pdf
Files produced by the author(s)

Identifiers

Citation

A. Krigel, M. Berdugo, E. Picard, R. Levy-Boukris, I. Jaadane, et al.. Light-induced retinal damage using different light sources, protocols and rat strains reveals LED phototoxicity. Neuroscience, Elsevier - International Brain Research Organization, 2016, ⟨10.1016/j.neuroscience.2016.10.015⟩. ⟨hal-01383394⟩

Share

Metrics

Record views

905

Files downloads

3514