Really? Because my eyes definitely feel much better after immediately putting them on, while continuing to stare at a screen. I have a pair of glasses that are Rx level and have some anti-blue light coating that works amazingly well, and then a cheap non-Rx pair that works well enough. But both work. Unless it's just Placebo Effect?

Maybe the question is, what is "Eye Strain?" They're talking about visual performance, but usually when I put my blue light filtering glasses on, it's because my eyes hurt after looking at a screen literally all day, whether working or gaming (and when gaming, I often turn screen brightness way up so I can see everything). And when I put them on, the pain goes away. So I feel like there's some benefit there, but I don't know what exactly what is being acted on. Or again, it's just Placebo.