Mugurel TudorFeb 21
OSNews

Blue-light filters are pure quackery

I was trading New Year’s resolutions with a circle of friends a few weeks ago, and someone mentioned a big one: sleeping better. I’m a visual neuroscientist by training, so whenever the topic pops up it inevitably leads to talking about the dreaded blue light from monitors, blue light filters, and whether they do anything. My short answer is no, blue light filt

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Blue-light filters are pure quackery – OSnews

Feb 21 at 7:34amWeb
Show threadRay McCarthyFeb 21
@osnews
Yes. It's the content & brightness that makes people be awake, not blueness of the light.
In reality very shiny screens that you can clearly see reflections in can give headaches, if there is a bright area with movement. The eye unconsciously refocuses on the movement maybe 2m or more away instead of screen content about 20cm to 40cm away.
So I have all matte screens and no desktop screens or TV with window reflections.
People seem to have sunlight brightness/contrast settings indoors.
Show threadMarcos DioneFeb 21

@osnews good to know. I thought a last KDE combined the red light with dimming the screen but no, and I have the impressions MacOS does not do that either. Android phones do, but in general I control the brightness myself.

That said, I prefer warm light at night. Maybe out of nostalgia to incandescent lights, specially after we switched to luminescent, and I can't forget that scene at the beginning of Joe vs The Volcano :)

Show threadBundesligatrainerFeb 21
@osnews Thanks for sharing.
You focused on the effect on sleep quality.
Have you also checked the effect on eye health and eye dryness?
This is where blue light filters might be advantageous.
Show threadflowolf Feb 21
@osnews so this is actually a case for dark mode?
Show threadNo WayFeb 21
@osnews I have FL-41 tinted glasses. They are amazing at stopping migraines due to fluorescent lights. Blue lights and ultra violet lights are the worst. But turning down the brightness helps a ton as well.