Mastodawn

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

https://www.osnews.com/story/144463/blue-light-filters-are-pure-quackery/

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Blue-light filters are pure quackery – OSnews

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Ray McCarthy

@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.