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Am I the only person wondering whether at some point screen brightness becomes a health concern? Looking at this for more than a second almost hurts, and now it
by epgui 3y ago
Am I the only person wondering whether at some point screen brightness becomes a health concern? Looking at this for more than a second almost hurts, and now it's as if I've stared into a flashlight and it takes minutes for my eyes to get back to normal.
(not an eye specialist, but I do have a biomedical background and I don't think it's completely ridiculous to be somewhat concerned...)
- mkmk 3y agoI’ve wondered the same on the constant IR flashes from FaceID. It doesn’t seem like it should be a problem compared to going outside in the sun, but it is a bit unsettling to see how bright and frequent the flashes are (a Nest camera pointed at a dark room shows them clearly).
- epgui 3y agoIt’s not necessarily the perceived brightness that I am worried about. Illuminated surroundings outdoors on a sunny day are obviously perceived to be brighter than any screen… But here we have a flickering light source that is microscopically very heterogeneous. LED emission spectra (even for very expensive ones) are extremely non-uniform and “peaky” at narrow bands of wavelengths. I’m not as worried about it as I am of lasers, but it’s a similar idea, maybe (very loosely speaking).