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.
> Lastly, we analyzed the use of blue-light filters, according to an answer to a simple question: whether participants did or did not use a specific filter for filtering blue-light on their screens. Only 10.6% of the sample (N1⁄474) reported using filters, whereas 622 parti- cipants did not. The most prevalent means of filtering blue light were f.lux (Windows) and Twilight (Android) software. No significant dif- ferences were observed for all sleep-related variables mentioned in the previous analyses. A statistical trend was found for the duration of sleep on workdays (489 vs. 461 minutes, t1⁄43.595, p1⁄40.058, Cohen's d1⁄40.23), meaning those that used blue-light filters slept in average approximately 28 minutes longer on a workday than those that did not use any means of filtering blue-light. No other differences were observed. An interesting finding, however, is that the group of people who use filters had more (albeit without statistical signifi- cance) total screen exposure (8.6 vs. 8.3 hrs) on average and more screen exposure on PC (4.3 vs. 3.6 hrs) and mobile devices (3.6 vs 3.4hrs), but less exposure to TV (0.7 vs. 1.2 hrs).
The article is quite positive about blue lights and presents excuses for its findings in the discussion. They ask for a better study with more participants and more samples.
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.
