[angus-g]

Even if they don't have the claimed sleep-related benefits, surely they can't cause any harm (except for slightly orange screenshots!)

[speedgoose]

True. We can tolerate orange screenshots if it makes some people feel better. Even if it’s a placebo effect.

One study found out that people using such blue light filters tend to have more screen exposure at night. Perhaps they think the filter allow them to watch more the screen, which may not be good.

https://pubmed.ncbi.nlm.nih.gov/32197951/

[kroltan]

Or do people use blue light filters to try and remedy their preexisting extra screen time?

(I don't have access to the article text and the abstract just seems to point the correlation)

[Moru]

People don't use filters just for sleep-related benefits. My optician recommended me to stay away from blue light and sunlight because of my eye conditions.