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    So are yellow glasses completely useless?

    Sleep and Light
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    • herfH
      herf
      last edited by

      I use sunglasses only rarely, actually - was trying to drive on too little sleep a few years ago, and I found it much easier to be alert without them. Sometimes I wonder about getting a less-dark lens instead, but for now I use my regular glasses all the time, where as you say, the UV protection is quite similar.

      There are situations where light is really bright (sun reflected on snow or water) where sunglasses protect your eyes from potential retinal damage.

      And of course if it hurts your eyes to drive into the sun, avoiding an accident would be good for your health also.

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      • C
        Czilla9000 @herf
        last edited by

        @herf Because I spend way too much time thinking about things - if you think about it wouldn't green be the ideal tint for daytime usage?

        i.e., it'd let in more of the 480 nm long-blue cyan light to keep you awake, more than any other color, while still blocking a lot of light in sunglass usage. And if you're someone who wears yellow lenses for "comfort" or contrast, green lenses should still filter out the dreaded blue light while keeping you awake.

        Am I wrong?

        herfH 1 Reply Last reply Reply Quote 0
        • herfH
          herf @Czilla9000
          last edited by

          @czilla9000 I think color perception is good too, and there are some reasons to think that wider-spectrum light, like you see outdoors, is good for other reasons (vitamin D, retinal rhythms, myopia, etc.)

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          • N
            nateliv
            last edited by

            Vision problems are unfortunately one of the hazards of too much screen time. In fact, the Vision Council found that 70 percent of US adults in one survey reported having some kind of digital eye strain (strained, dry, or red eyes; blurred vision; headaches; back pain; neck pain; or general fatigue) as a result of using digital devices for hours at a time.

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            • E
              ebbs3801
              last edited by

              during the day you dont actually want to block all blue light from your environment as we need blue light during the day to stimulate wakefulness and hormones with dopamine and serationin . a good quality blue light filter lens needs to filter blue light down by approx 50% especially around the 450nm mark as this is the part of the spectrum that is most damaging! You are right in the many of these clear lens blue light glasses are a scam as they only block 10-20% of blue light and normally only from 400nm-430ish nm, so they dont even filter any at all at the 450nm mark! www.BlockBlueLight.com.au do these computer glasses the remove 50% of blue light across the whole blue light spectrum, so using something like these during the day are perfect!

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              • I
                Iron Arm @ebbs3801
                last edited by

                @ebbs3801 Yeah, they've debunked the blue light thing recently. It's not disruptive to sleep.
                https://time.com/5752454/blue-light-sleep/
                https://www.sciencedaily.com/releases/2019/12/191216173654.htm

                herfH W 2 Replies Last reply Reply Quote 0
                • herfH
                  herf @Iron Arm
                  last edited by

                  @Iron-Arm no this press was way out of line. It answered a very technical question (in mice) and did not at all dispute the contribution of melanopsin, which is responsive to blue-green light. See my notes here:

                  https://forum.justgetflux.com/topic/7321/are-we-sure/2

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                  • W
                    WhiteOleander @Iron Arm
                    last edited by

                    @Iron-Arm Yes, I also made a reply to this under "new topic" which was suggested. This is a good general principal to keep in mind 1. one study does not 'debunk' a theory 2. Mice/animals are helpful, but still not exactly the same as humans. These mice likely (in fact I'm sure) have spent their entire lives in a lab setting, probably under floursescent light. Their 'baseline" could not be considered the same as ours (hopefully). 3. One must take the quality of the study into account (many blogs (like Science Direct - it sounds "sciencey" , but these are studies interpreted by people who aren't necessarily able to do so. 4. Follow the money. This study was funded by a Biotechnology company. For obvious reasons, they will not want blue light to be a negative thing. (nor EMFs). If you are not aware, trust me (lol, a complete stranger); that a huge problem with the current state of science is that outcomes that are published are controlled by the funding sources - largely pharmaceutical companies and now - big tech.

                    Hence, we do not hear about the negative effects of things related to all the new technology.

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                    • M
                      maripadoan @Czilla9000
                      last edited by

                      This post is deleted!
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                      • S
                        StevenBrown
                        last edited by

                        Well the glasses won't make you better at gaming, they'll just block the blue light for the screen to cause less strain on your eyes. As for the brand any should do. Some have more of a yellow tint than others. i would prefer using KLIM Optics Blue Light gaming glasses. It's yellowish tinted glass lens and superior quality TR90 Frame offer supreme protection without compromising style.

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                        • herfH
                          herf
                          last edited by

                          Might make you worse at it! Here's a new article - figure 2 says people are better at adding numbers when they see more blue:

                          https://www.frontiersin.org/articles/10.3389/fneur.2021.624217/full

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                          • J
                            joshfreeman
                            last edited by

                            yeah, I guess so, they are literally outdated.

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                            • R
                              Rosielily
                              last edited by

                              Basically, glasses like Gunnar aren't tinted enough to do anything

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                              • J
                                JessLewis @StevenBrown
                                last edited by

                                @StevenBrown said in So are yellow glasses completely useless?:

                                KLIM Optics Blue Light gaming glasses

                                Thank you for the information. I've been working a lot on the computer lately and my eyes are getting tired, I wanted to try protection glasses. I will try this option.

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