+Forgot to mention the Gunnar glasses and the custom made (accurate) glasses, which both didn't have any improvement at all.
BR,
tbs
Eye strain, foggy mind and what I found behind it
5 days later
Well, just here to confirm that LG 32GK850G was not working for me at all. After like some minutes i got some warm eye feeling, so that was a returning within the 14 day period.
I was seeing personally a Benq PD3200U for an hour and found it comfortable. Let's see how that one will go.
Hey, welcome to the forum! I am sorry to hear that LG didn't work out for you, hopefully benq will be ok for you. Please keep us updated. A couple of questions:
- Do you have issues with print e.g. books, reading, focusing?
- Any issues with lightning - led's, flourascents?
- Have you tried eink monitor? Any other eink devices?
Hey and thanx for your questions;
- yep with books, regarding focusing i have also some unconformity, but actually just minor, i.e. reading for long hours can feel a bit heavy, but then looking away for some minutes solves it
- Led/fluorascents have no issues
- eink i didn't try yet
However what i today just found is very interesting. I was imagining the whole thing from some other aspect and thought, what if these strange technics are causing actually some kind of sensory overload. Because mainly what i feel with such HW and also SW, that after some time, i can barely look at literally anything lighty/shiny and usually not only that day, but the whole day after that as well (just like today, because i did some new testing yesterday).
With sensory overload (probably, in my case) i mean they do some "intensity" boost, which they need because the technology today is not able to reproduce such colordepth/intensity/overall-brightness (except maybe OLED, but thats still for TVs), which could suffice their needs. It is enough to look after HDR or similar techs, where the minimum nit level is somewhere like 1000 (if i remember correctly), while monitors (but not OLED TVs) are producing just some fragment of that value (again, if i remember correctly), but anyway without HDR either, these OLEDs are just way superior to normal LED stuff nowadays. That's where this "pop out rendering" comes in (i think, but i'm pretty sure there), with which they can achieve some level of "intensity" boost. Because old monitors, or my OLED TV does no such thing at all and i could use them for whole days if i'd want, just like games for example which don't use this rendering feature.
I remembered times where my pupills were acting somehow differently, mainly when i was quitting smoking for two months and then today i tried to find something what relates to such sympthoms.
Then the closest thing i found is called Mydriasis, which is mainly a dilation of the pupil (at me surely not dramatic at all, but at least the post-light sensitivity still indicates this), or photophobia, as mentioned together with Mydriasis as well. As a cause there is also SSRI mentioned, which adds up the story.
Basically what i think in my case happens, the "intensity" boost impacts my eyes, but the pupils are not closing up correctly(or such) and thus it leads to sensory overload after some hours of use. After this, due to the overload, lighty/shiny situations or light sources are disturbing my eyes, where my pupils are again not able to close enough. The next day is then always the same, i can barely watch or even look around in general and feel the above mentioned photophobia, which is then teaming up with some headache, foggy mind and the loss of like to do anything, just like when one gets a deep cold. The day after, it is then all away, that was it.
Yesterday i tried again the good old stuff-causing-game, World of Warcraft, but now on the OLED TV. Hours long i didn't have much to tell, but somewhere i already felt it will cause problems again. Well it did, as mentioned above.
It doesn't matter what kind of display you use with that game at all, however, when watching TV, or playing some other games, i have no problems on OLED.
I'll still try to contact Blizzard support, but i'm pretty sure it will lead to nowhere.
What just got in mind, is that i'll go to ophthalmologist and try my story, then if i can get an official statement, i'll contact consumer protection, or how they call it in english. It's simply that, because one should be able to use nowadays' displays without issues, just like older displays and should not losing loads of money on unusable equipment and not making harmful tests on self. One should also be able to use new SW without issues, just like the older ones - the money and selftests apply here too.
Most probably i wouldnt' be able to personally affect any manufacturer to alter its technologies, so only that one remains.
BR,
tsb
Wait a second, if anyone knows how to measure a display's light emission, please let me know, it would be a good test. But here, not to measure an accumulated emission value, instead we should be able to measure the harmful emission spikes. That's because the overall screen looks normal, even after altering brightness/contrast/etc, but the emitted spectrum shall contain the spikes somewhere, which then causing the problems.
An oscilloscope i have here, i'd happily do such experiments 
BR,
tsb
degen yep, i began to see it exactly there too.
Got the Benq today, well it flashes somehow as well, maybe not so much, but time will tell.
Maybe there is no display out there anymore without this "trick" at all, so i'll just keep it, i'm tired of testing around pretty much now.
Wish one could at least just switch to an open-monitor-firmware, like a dd-wrt. That could make things interesting.
No way, the Benq goes back next week too, consumer protection here i come.
be our guinea pig and try one of the lightboost/gsync monitors.
i like the idea of sensory overload. I have some color blindness, which implies divergent levels of of rods and cones. this maybe leads to 'early clipping' of different (blue) wavelengths, and a 'staring at the sun' feeling. This explains why I get it from looking at a single led
like these buttons. they look perfectly nice and glowy in real life, but 'clip' the camera https://reverb-res.cloudinary.com/image/upload/s--5q1jTuab--/a_exif,c_limit,e_unsharp_mask:80,f_auto,fl_progressive,g_south,h_620,q_90,w_620/v1469036363/vwevinxbxk1foced251t.jpg
Just found a little bit of improvement; i'm turning on all the lamps in the room, this way the effect is a little bit less hard. Maybe. I need to play around some more.
But anyway interesting, as the idea i got; how could i close my pupils somehow, so they don't gather that much intensity? Light makes it so, so then, let there be light.
From Benq i got an answer about the backlight they use in their monitors, but of course this alone has nothing to do with my problem.
Anyway, today i just made the contact with consumer protection regarding the issue, let's see how it goes.
Just contacted nVidia, let's see what they say, however i don't expect anything useful, since the thing is some sort of a great secret, which is probably due to "money dictates". If not, then why all this?
Doesn't matter, i'll also try maybe Microsoft; maybe it is somewhere deep in DirectX itself, as for SW side.
tsb Good luck with a response.
In my experience this issue is also happening on other devices and platforms, it's not just a Windows 10 problem (if only).
We have a Samsung LED smart TV from 2017 which will display video from our Tivo V6 box just fine - however I've noticed the minute I switch over to a 4K channel with our cable provider, or stream a Netflix video in 4k either from the cable provider's stb or the Samsung Netflix app, I get similar 'dithering' eye strain after a few minutes. It seems OK with SD/HD content.
Maybe it's the push for HDR that is causing this? Perhaps new devices switch temporal dithering on when a 4k/HDR source is sent to it?
nVidia began with the same basic stuff, light blue light and what not, i think i just pass on them. I'm pretty sure one can not get a useful answer from them "big companies".
I was playing a bit with contrast/brightness/gamma settings and actually found that nothing improves with those. However i also noticed what i forgot to mention; there is also some sort of super-hyper crispiness in all these images rendered, or even the monitor screens, where content edges occur as contrast. Interestingly, altogether this looks really sharp, but not only that, but also gives the "objects" some kind of depth; one could also say some sort of pseudo-VR-feeling popping from the screen. Problem is, then, if i try to focus on the edges/contrast of these kind of content, for example some bright stuff on a black background, i loose focus; i.e. my eyes are not able to properly focus on them. That's another easy way to detect such a technique to be present.