1. ThoD

    ThoD GBATemp Addict (apparently), but more like "bored"
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    They are just indicators, not literally "x time passed so it's dead", so yup, my PC is 7 years old now and run it 24/7 with at least 18 hours a day being at full load (encodings, high-end gaming, rendering, etc.).
     
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  2. Jiehfeng

    Jiehfeng a.k.a, Your Maitreya
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    e653dbb.jpg
    (ps, it ain't so bad, a guy pointed out they necessarily aren't CRT's, the screens are not as viscious as a cathode light to your eyes.)
     
  3. ThoD

    ThoD GBATemp Addict (apparently), but more like "bored"
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    CRTs were the ones bad for your eyes and LCDs to some extend, BUT it's not just the light that can ruin your eyes, screens at the wrong distance damage your eyes' ability to focus (causing blurry vision) and VR headsets ALL have the screens too close for "realism". Normal distance is 2-2.5 times the diagonal size of the screen for reference.
     
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  4. Veho

    Veho The man who cried "Ni".
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    Are you taking into the account the lenses that make the screens appear further? You have to fiddle with the focus on some models but the majority can set the screen's apparent distance to something comfortable.
     
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  5. ThoD

    ThoD GBATemp Addict (apparently), but more like "bored"
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    No, I mean that normally you have to keep the screen ~2 times as far as it's diagonal size (so 3" screens need to be at least 6" away), focus on the headset can make it seem like it's at the right distance, but it still damages your eyes.
     
  6. Xzi

    Xzi All your base are belong to the proletariat
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    Seems like mostly superstition and guesswork, there's no evidence to support this as of right now. Blue light we know can be harmful, but that's filtered through the headset lenses when it comes to VR, double filtered if you wear glasses. The ability to focus on distant objects in VR comes down to setting your IPD correctly, and making things look "realistic" is all about having a higher resolution and refresh rate.
     
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  7. ThoD

    ThoD GBATemp Addict (apparently), but more like "bored"
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    What are you talking about? There is evidence that having screens too close damages the eyes' focus, it's irrelevant to the light of the screen or how it works, it's a fact based on how the eye itself works! Humans can perceive vision in 3 dimensions like all predatory animals, so the eyes have the ability to bring things in and out of focus (eg: hold your finger in front of you and if you focus on it the background blurs while focusing on background makes the finger blur). Sitting too close to a screen or any object while directing your attention towards it for extended periods of time damages that particular function of the eye causing the eye to perpetually see things a bit more blurry than it should. This has been known, proven and even taught in biology for almost 200 years now (before screens even where a thing with other things people focused on). It's why you get eye strain (the burning feeling at the back of the eyes is from the blue light, strain is from focusing on a screen too close for too long). While sitting in front of a screen, if you are also looking around and whatnot instead of fully focusing on it, you won't really have adverse effects from this, but with VR headsets there's no taking your eyes off the screen if you look around, forcing you to always stay focused.
     
  8. Xzi

    Xzi All your base are belong to the proletariat
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    The current iteration on VR is too new for any long-term studies on this to be available. As far as I'm aware, the eyes and the brain don't interpret it in the same way they do when sitting close to other (flat) screens. It's far more similar to how you perceive things in the real world, where you can focus on distant or close objects. I can't speak for others, but I don't have an issue allowing my eyes to become unfocused in VR either. Not to mention most VR headsets have plenty of non-screen deadzone which keeps you anchored to reality (110 degrees FoV is pretty standard for PC headsets, whereas real-world human FoV is 200 degrees or more.)

    Anecdotally I've been using VR since 2016, and I did already wear glasses, but there's been no change in my vision during the last few years.
     
    Last edited: Dec 25, 2019
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  9. ThoD

    ThoD GBATemp Addict (apparently), but more like "bored"
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    I'm talking about astigmatism (the medical condition), you are talking about blurry display...
     
  10. Xzi

    Xzi All your base are belong to the proletariat
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    I know what you're talking about, and I'm saying there's no evidence for VR causing (or aggravating) astigmatism. Regardless of how low or high resolution it is. Eye strain in VR doesn't seem to be an issue for the vast majority of users, far more common is motion sickness (tied to inner ear balance) which forces shorter play sessions. I don't have either issue, though, and I have a high-end headset (Pimax 5K) which is crystal clear, so I'm able to play for 5-6 hours at a time without any discomfort.
     
    Last edited: Dec 25, 2019
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  11. Jiehfeng

    Jiehfeng a.k.a, Your Maitreya
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    In conclusion it's all about the mind at work here and how you go about using a VR headset, making sure you don't get used by the headset itself lol.

    — Posts automatically merged - Please don't double post! —

    That is probably your experience, may I give you a harmless experiment for your eyes?

    Try this. Don't try to focus or unfocus your eyes, neither of the two. Just let the eyes be, be alert about the image projected in your conscious.

    Keep focus on the whole "image", all of it at once. This is not a use of the eye muscles and nerves to focus on something, no. Drop those, and try to see everything at once. Once you get that, you will feel like your whole reality has become one, instead of individual reality per eye movement.

    Now with this, your eyes will always be intelligent when it comes to meeting with "dangerous screens". Please try it. Remember, don't focus, just notice, or in other words, just "check", be as delicate as you can with this process. If there is even a little tension, then you are doing it wrong and using focus again, either focusing or unfocusing. :)

    You will know it worked if you see in a new way for the first time, also try not to scoff before experimenting, hopefully you try it.

    Oh, PS. This is not to be tried with VR, I'm talking irl. Try VR once you get this mastered if you catch my drift somehow.
     
    Last edited: Dec 26, 2019
  12. ThoD

    ThoD GBATemp Addict (apparently), but more like "bored"
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    The eyes BY THEMSELVES are always focused at whatever is in the middle of your vision, reason you have slower reactions to and often don't notice things in your peripheral vision, it's because they are out of focus and generally ignored by the brain. I'm not talking focusing with muscles or anything, the eyes will ALWAYS focus on something since it's how they work and if you want you can increase that focus temporarily (timespan of increased focus varies from person to person). It's why driving at high speed at night is tiring for example, it's because you increase your focus. I don't feel like explaining basic biology first thing in the morning having just woken up so just look up some medical journals and books on ophthalmology, you'll find TONS of useful knowledge (eg: how the eye literally can perceive ~1000 frames per second despite Ubisoft's "eye can only see 24FPS" and other cool info:P).
     
  13. Veho

    Veho The man who cried "Ni".
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  14. ThoD

    ThoD GBATemp Addict (apparently), but more like "bored"
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  15. emmauss

    emmauss GBAtemp Advanced Fan
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    jt_1258 Human?
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  17. Veho

    Veho The man who cried "Ni".
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  18. Veho

    Veho The man who cried "Ni".
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  19. ThoD

    ThoD GBATemp Addict (apparently), but more like "bored"
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  20. Jiehfeng

    Jiehfeng a.k.a, Your Maitreya
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