I just became aware of what is called a blue light protector. It is a piece of glass or plastic which covers a display and filters out a spectrum of blue light and/or uv.

Anyone tried a blue light protector?

Here is an advertisement for one brand of these things (I am not associated or promoting it in any way):

https://www.youtube.com/watch?v=25PA55IfUwA

So something that I have not seen mentioned in discussions of eye strain is whether displays are putting out UV light. And if they are, how much? It seems strange to me that at least some of the companies selling these filters would advertise them as blocking UV if UV is not a problem. I also have seen it mentioned around the net that some newer displays have a UV protection layer in the display.

Also, I think that my eyes have become permanently damaged, and I wonder how blue light and/or UV light have played a role.

  • AGI replied to this.
    5 days later

    I have tried probably every blue light filter on the market. To date none of them have worked. It's not JUST blue light that causes LED pain. The red light they emit is a problem, on top of PWM and other flickering effects, the glare/intensity, etc. There are a LOT of aspects to it

    • AGI replied to this.
      5 years later

      oxlr Late feedback. I just purchased an Ocushield screen protector for my 15.6" Windows-based laptop. I trust it filters blue light as advertised (currently, I have no means to verify my claim). If I tilt my head away from the screen, I cannot see anything at all, so the protector works great as a privacy filter, but this was not the main reason I bought it. Although the display has a matte finish, I can see my reflection in it and there is quite some glare from the overhead light. My eyes' condition has gotten much worse in the last few months and, as always, I have no clue what is causing what, so I thought of trying to get rid of the glare. Here is where I am a bit disappointed. With the protector on, there is very little improvement if not none. Especially, if bent more than 90 degrees with respect to the keyboard, the screen becomes so reflective that it is unusable. Also, I guess because of the privacy feature, the lateral edges of the screen look a bit different than the center. Maybe I will overcome the issue of the left-center-right difference, but after the first few days use I am not confident I will find any relief to my condition from the screen protector. I should add that I used the removable solution for the installation (holder stickers), and this worked nicely. I may also try to deactivate f.lux (4200 K color).

      ensete The red light they emit is a problem

      This is interesting. I never heard of it. Could you please elaborate / provide some reference? Thanks in advance!

          dev