I used to be able to spend all day in front of the screen, but then when my 2012 macbook pro finally croaked and I bought a new one I now get insane eye strain, nausea and headaches if I don't wear glasses, and even if I do wear them I still experience eye strain.
Apparently this has to do with new display low frequency flicker rates due to PWM
Anyone else have the same problem?
unironically set backlight to the minimum, you don't need your monitor to stare back at yourself
Apparently this is even worse because lower brightness is actually achieved by reducing the led flicker rate, which is what makes it more perceptible to your eye
u wanna calibrate ur monitor because higher brightness fucks with your colors
lower backlight according to your environment, increase contrast, avoid having bright lights (windows, lamps, whatever) in front or your eyes. if you need bright lights, make them enter from your side.
just get a screen with dc dimming you fucking idiot. also less screen time and more staring at the horizon. but its prolly too late and your eyes are permanently damaged.
>lower backlight
means more flicker combined with pwm you nerd
"While dark mode has a lot of benefits, it may not be better for your eyes. Using dark mode is helpful in that it’s easier on the eyes than a stark, bright white screen. However, using a dark screen requires your pupils to dilate which can make it harder to focus on the screen.
Why does eye dilation make it harder to see? When your pupils dilate, your vision becomes less clear. When your pupils constrict under bright light, your vision sharpens. Just like a camera, a smaller aperture provides greater depth of focus. For this reason, it may be more difficult for some people to clearly see screen details in dark mode.
People who have myopia or astigmatism also may experience halation (from the word “halo”). Halation occurs when light spreads past a certain boundary, creating a foggy or blurry appearance.
In other words, white letters can appear to bleed into a black background, making it more difficult to read, especially if the print is fine. "
redshift + light theme fixed it for me
This
I used to laugh at light themes, but now my eyes get tired if I use a dark theme during day.
>I used to be able to spend all day in front of the screen, but then when my 2012 macbook pro finally croaked and I bought a new one I now get insane eye strain, nausea and headaches if I don't wear glasses, and even if I do wear them I still experience eye strain.
it's true. but then again there are like fucking demo units you can use and see for yourself. it's mostly your fault. mostly it's lottery if you buy stuff online.
I'm kinda lucky my phone is IPS and does not give me eyestran but I actually found out that WRONG DPI causes eyestrain so I edited the dpi of my phone using ADB or something
>Apparently this has to do with new display low frequency flicker rates due to PWM
yes that is true. sometimes the refresh rate of hardware (not software controlled FPS) is like 58hz but also the LED lighting flickers poorly.
these could be observed and proven when you have another phone with camera and looked at the camera viewport, it would have black/banding flickering shit on both 60hz/50hz mode of camera (usually this is auto)
it's even worse since they now "overclock" oleds it's called "HBM" or high brightness modes, where they PWM like mad temporarily but it turns out it's just shitty PWM flicker and turns on and off rapidly so your eyes get tricked that the "peaks" make it seem bright when in reality it's using almost the same wattage but just different fluctuations (and harmful to eyes too!)
>Anyone else have the same problem?
yes but I strictly choose IPS now but also I need the DPI to be correct.
more of a skill issue though if you have the DPI correct, you should try the "lazy eye" eye exercise thing where you put eyepatch on your "better" eye or just do eye exercises in general. though it's true. LED is kinda sharp even if it's burned in.
I've had this problem with BOE TN screen on acer.
Easy to test, you grab a pencil, set screen to 30-50% brightness and swing pencil infront of the screen. If you see stroboscopic effect (i.e. multiple pencils) just get a hammer and wreck the screen because this is what it deserves.
CCFL ran at like 10 kHz or more. LED PWM sometimes is as low as 100Hz. Which is like insane.
Next time you buy screen, point phone camera to it, and if you see stripes, grab pencil and if you see pencil stroposcope, just fucking get any object and break said screen inside the store.
OLED is kinda suck since everything I've seen pwm flickers in low brightness and high brightness. it is quite good though if you use it under the sun which at that point the lighting of your sun overpowers the piece of shit pwm flicker.
CRT is not based since it also have some kind of judder or flicker and bobbing.
aged LED is unbased since it has ghosting, latency, eyestrain and super bluish-reddish screens.
CCFL is based though since CCFL is more greenish which is much closer to how real white should look like plus CCFL has higher CRI than the rest of these lighting tech while also having softer PWM, an aged CCFL at highest brightness will have zero eyestrain since highest/max brightness has zero PWM. it's also the reason we still use CCFL on some studios and shopping centers.
What of plasma screens?
less brightness
pinhole glasses, they work. I made mine out of poking holes in DIY tinfoil covered lenses free glasses.
Enabling The blue flight filter worked for me. No eye strain for over a year.
>contrarian homosexuals laugh when people recommend flux and redshift to them
>one year later:
screen temp at 2500k fixed it for me.
Buy a monitor which doesn't use pwm for adjusting screen brightness. Notebookcheck tests for this.
PWM flicker was a thing a decade ago and has been more or less phased out. Besides, these days it's easy to find info about whether or not a monitor is flicker-free.