Blue light filters don't work – controlling total luminance is a better bet

Re:Blue light filters don't work – controlling total luminan... by tartoran on Friday February 20, 2026 @02:35PM (#47092784)

Absolutely and this is something that can be tested rather easily. If blue filters aren't immediately helpful to eye strain then they probably don't work for you but if they are they probably do work for you.

[ Parent | on HN ]

Re:Blue light filters don't work – controlling total luminan... by IAmBroom on Friday February 20, 2026 @04:47PM (#47094458)

You can test the negative easily, but the positive is harder. Thus: placebos.

[ Parent | on HN ]

Re:Blue light filters don't work – controlling total luminan... by cgriswald on Friday February 20, 2026 @06:07PM (#47095318)

On the level of the individual a working placebo is a success.

[ Parent | on HN ]

Re:Blue light filters don't work – controlling total luminan... by tartoran on Friday February 20, 2026 @05:38PM (#47094980)

You're saying that my eyes straining going away from reduced blue light is placebo? I can feel it right away and it gets worse in minutes, time and time again. As soon as I remove blue light the strain is gone. Honestly, I don't care what other people have to say, to me it's obvious that it helps and I stick to it. Again, I don't think this is universal and it may not help you if you don't notice immediate improvement.

[ Parent | on HN ]

Re:Blue light filters don't work – controlling total luminan... by IAmBroom on Monday February 23, 2026 @09:03AM (#47122468)

That's reasonable: it works for you. But be aware that, since placebo effects are psychological, their effects can be noticed in the time it takes your brain to notice you put them on.

[ Parent | on HN ]

Re:Blue light filters don't work – controlling total luminan... by Perizors on Saturday February 21, 2026 @01:39PM (#47103409)

Every dismissive reply talks about eye strain nada that is by far not what the author is taking about.

[ Parent | on HN ]