This has _nothing _to do with how long I look at a screen. I can look at my phone screen, my laptop screen, or my old square dell monitor (or any old monitor) for 6 hours a day and have NO problems.
The problem:
When I look at this monitor for even an hour it makes my sort of blind. In exactly the way it would if you got flashed in the eyes with a bright light and then looked away. My eyes have a “washed out” effect to them. I’ve tried two different new computer monitors, and I have a second laptop that one of my employees uses that does the same thing. This also happened to me when I bought a new overpriced TV (sony bravia).
Things I’ve tried:
In the case of the TV I can “get by” after tweaking the brightness and contrast and brining in lots of extra light to the room, but I can only watch streaming tv on it, for some reason network tv still gives me that flash burn effect. For the computers I’ve tried repeatedly to lower brightness or contrast, bring in more light, change light angles etc. Nothing helps. The issue is intense and takes very little time using one of the bad devices to present.
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This laptop causes me to have the problem badly: Amazon.com
This laptop I have never noticed the problem: Amazon.com
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This monitor its very bad: Amazon.com
I also have two HP23es monitors. One of them causes it slightly, but is okayish as long as I have perfect room light. The other one seems to cause it no matter what.
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I have attempted to check the HP23es monitors for PWM by making a video of them, as best I can tell they don’t have it, but I may be recording it wrong. I had 60fps with 1/400 shutter speed.
I’ve had this problem as well, it’s a weird sensation, indeed it feels sort of like being blinded, even though the brightness is at minimum, it’s difficult to see properly and it’s very tiring, with headaches settling in after some time.
At first I thought it was PWM but OLED screens have PWM (pretty low frequency) and I have no problem with those. I also tested non PWM monitors and still had this problem.
It didn’t matter whether the panels were TN, IPS or VA. Then I thought it was maybe due to the blue spike from the white LED back-light, since OLEDs screens don’t have this spike. So I went with a Samsung QLED back-light monitor (VA) which don’t have a blue spike, and there was no problem, very comfortable monitor for me.
Interestingly enough some people have noticed watery eyes or headaches from the latest macbook pro and air, while not having the same issues with their older Apple laptops.
I have noticed this both on various threads online and also in some reviews.
That being said I do not think ophthalmologists are truly understanding all possible issues with a patient, I know some of them for example do not understand PWM and can’t see it either, based on personal interactions with them, not to mention some of them have ultra low CRI and high CCT light sources in their consulting offices which is pretty underwhelming to say the least considering that I personally know people that get headaches from such lights sources and an ophthalmologist like that will most likely be unable to help them especially when nothing “expected” to be wrong is found.
BTW, I’m using the night mode 24h/d on my old Acer notebook that is terribly blue otherwise. In this mode (Windows 10), colors appear as normal as when I attach it to my desktop monitor in normal mode.
Probably all economic screens have bad PWM and manufactures don’t give a f@#$ about it. I checked my phone and PC monitor with OPPLE. Both have not acceptable PWM. On full brightness it looks better, but damn, who looks at screen on full brightness all the time?!
While not big displays, as far as I have seen Samsung high-end smartphones have visible PWM as soon as you go down in brightness, but in my experience no one can even see it even if pointed out, I would assume manufacturers from engineers to product testers also don’t have a problem with it practically, so I would assume they don’t care about such details at any level at all.
Recently I am having a lot of eye fatigue from monitor use, and deteriorating vision generally. A lot of floaties have appeared in my vision, and also a foggy hazy appearance around light sources.
To help with this I have purchased blue light filtering glasses. These have gained in popularity recently and are commonly called “gamer glasses” or computer safety glasses.
I purchased: inexpensive safety glasses, more expensive safety glasses with a higher reduction value, and polarized sunglasses with brown lenses.
The inexpensive blue light blocking safety glasses are MCR VL210MB which are among the cheapest blue filtering glasses available at $6.69 a pair. They are mostly clear and 88% transmissive, not much different than standard safety glasses, but claim to block ~%41 of blue light. The specifications are sparse.
The more expensive ones I acquired are HexArmor VS250 with CBR65 lens. These are slightly yellow tinted, block 50% of blue light at 450nm, and are ~65% transmissive overall. $15.
Polarized sunglasses with brown lenses are said to be ideal for driving. I picked up Bullhead BH11711 Mojarra Safety Glasses, 18% transmissive, for $30. These will live in a safety glasses case in my truck.
I will acquire various other tinted safety glasses for general outdoor use, maybe ones with a “12% grey mirror” lens, or similar to start. Lens colors and tints are interesting to consider.
Besides looking into and acquiring the aforementioned glasses, I have been checking out computer monitors. My current monitors are HP ZR30w which are 60hz and have aging fluorescent backlights, which have spiky wavelength output. This monitor also causes horizontal lines to appear in my vision when I look away from the screen, which I don’t like. I may acquire a high refresh rate monitor from Dell with “ComfortView Plus” which has a built in blue light filter screen. I hope the high refresh rate will help with eye fatigue.
