this post was submitted on 14 Jul 2023
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Explain Like I'm Five
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As far as I know, yes some do - but I have also seen some that don’t have nearly as drastic affect on the colors you look at.
Take this with a grain of salt because I don’t know a ton about light filtering glasses, but I’m pretty sure that some of the more “color accurate” ones work by having polarizing lenses that don’t allow certain wavelengths of blue light through the lenses. Whereas the more sepia-tinted ones just apply that sepia tone filter across the lenses. Still, neither one totally blocks all of the blue light because that would drastically alter the viewing experience to make it unpleasant/unviewable. Try going into your monitor’s color settings and setting B all the way to 0 and see how it fucks up all the other, non-blue colors.
I believe the general guidance is high quality filtering glasses > software solutions. But I would only worry about it if it’s an actual problem that you struggle with. I personally run f.lux every night at sundown, but it’s on a very mild setting that you wouldn’t really notice unless you toggle it on and off.
I wear blue light filtering glasses for working at my desk. You can order them with varying intensity, and there's some visible differences with higher strength, but often you don't really notice the difference after a while.
The idea with them isn't necessarily to filter out all blue light, it's to filter out some of it, to hopefully reduce some of the strain over a long period, not necessarily to block all blue light at once. It's also useful on nights when I'm working before bed, because one thing they have proven is that blue light fucks with sleep cycles.
They're not safety goggles, they're more like sun screen. It's gonna get through, but not as much, and that makes a difference over long time frames.