Blue light from monitors no danger to eyes or sleep
I recall that a paper published by Oxford in a journal related to gerontology claimed that blue light accelerated aging of the retina. If I understand correctly, this article doesn't counter that claim outright, it just didn't find that risk with the low intensity of blue light coming from a typical monitor.<p>Tangentially related, that same Oxford paper (sorry I don't have a link and no longer have access to the paper) did however claim that light generated by red LEDs with sufficient intensity to leave a significant persistence effect after 3 minutes of exposure can reverse aging and damage in subjects over 40 years old although the sample size was just a few dozen people IIRC. It does so because somehow the retina's mitochondrial function is improved by light in the 650nm to 1000nm range.<p>Continuing on this tangent, I am 50 and have been exposing my eyes to red light for 3 minutes a day for many months and feel like my night vision has been restored. If I wake up in the middle of the night I used to see gray noise and now I can see darker black with better contrast. But I may be kidding myself.