LED light can damage eyes, French health authority warns
f.lux author here. I'm pasting parts of the 458 page PDF into Google Translate.<p>The recommendations look very good, and don't particularly match the Yahoo article.<p>1. They recommend IEEE 1789 as a flicker standard for Europe, which is fantastic, as it covers lower levels of stroboscopic flicker that other standards have missed. (e.g., typical 120Hz flicker from direct-wire TLEDs)<p>2. They re-state the "acute" hazard from extremely bright LEDs, while urging some caution on "chronic exposure" to lower light levels. Suggest that some automotive lights could be a problem since they have high luminance. Urge more research on progression of macular degeneration and chronic exposure. The question about acute levels refers to a paper by Hunter [2012]. Nobody is saying that screens or residential lights pose a new problem.<p>3. Circadian recommendations are solid - more light during the day, and reduce light around 480nm at night. Pregnant women and children may have lower thresholds.<p>4. Say most ophthalmic lenses filtering blue light don't do very much, and specialized ones (you'd say very orange or red) are required for circadian effects.