Can anyone explain?!
I can’t use my wife’s iPhone 14 without feeling nauseous- whatever settings. I can use my iPhone XS.
Today my wife screenshared the iPhone 14 to our TV which I usually can tolerate fine whatever is showing.
We played a game that was screenshared from the iphone14 to the TV and I feel completely sick. I couldn’t tolerate it at all. I now want to go to bed.
Anything she screenshots and sends me I can’t tolerate either. If a device is unusable for me- then even if I take a picture of that screen with my iPhone that I can use, I can’t look at that picture even on a usable devise. This seems to prove it is nothing to do with brightness/flickering etc but something with the makeup of the pixels or something as even a screenshot of it on a usable screen makes me sick.

Also any tips to get over the nausea quickly?

    Dithering and pwm. The best combo for nausea

    JonnyT

    Its probably given you a migraine, its entirely possible to have one without a headache. Rest or light exercise will probably be best, or you could try a natural anti-nausea tonic like ginger.

    JonnyT

    First: iPhone 14 is using PWM, if you getting sick just looking at it for 5-10 mins, then you are affected. If you looked at it for more than 20-30 mins, you need to sleep to help your eyes rest and refresh your brain. It works for me.

    Second: If you were exposed to PWM for longer periods like 2-3 hours, you would need more time to come back to your normal life, for me it's 1-3 days. Sometimes during this period any screen could give me eye strain.

    Third: anything that casted or screenshots from that iPhone 14 cannot give you eye strain or nausea. It could be just a game gave you sickness, or your eyes didn't rest well after you were exposed to PWM.

      madmozg
      Thanks so much appreciate you responding. Just some points to help me clarify - sorry if it comes across as argumentative - just trying to get the bottom of things.
      the third point for me is incorrect. This is 100% the case for me. Whenever I see screenshots of unsuable devices it gives me nausea even on a usable device. If I play the game on the tv on their inbuild browser I do not feel nauseous, if it is casted from the iphone then i feel nausesous.

      Also I assume you would say by iphone XS also uses PWM - yet I don't get nauseous using that for hours on end?

        JonnyT see if it is the same for sceneshots from full screen video, screenshots of ui elements like the settings screen, and for webpage with text, without ui elements. Could also be that you're viewing things at a different resolution so it scales. In which case, try opening then on the computer and try with and without scaling.

        I don't understand how you can talk about PWM in such a situation.
        The TV he is using is not giving him problems, so how is it a PWM problem? Also, his phone is an XS which is OLED and flickers at 240hz.
        So the only conclusion we can make is that it is not a PWM problem
        It is a problem related to how the image is rendered, then what the problem is no one knows otherwise we would have solved our problems.

        @JonnyT I have an old plasma TV that connected to an old firetv stick (I think it's from 2017) is fine, connected with the current firetv stick I get a migraine after 30 minutes. My problem is 100% software and probably yours too.

          JonnyT

          What iOS is your iPhone XS on? I've had an issue with previously "good" LCD Apple products becoming unusable after certain iOS updates. Potentially this is what is going on with you as well. I posted about it here:

          https://ledstrain.org/d/2683-severe-symptoms-updating-old-iphone-started-a-summary-of-goodbad-versions

          Apple OLED products have never worked for me so not sure these issues apply to them. But might be worth taking a look. Seems like later versions of both iOS 15 and iOS 16 changed something with the rendering.

            blurriness is a trigger for me, some software seems to include some heavy blurring or anti-aliasing that gives me migraines. Given that even screenshots from this iphone viewed on otherwise good devices are a problem for you I'd suggest this as might be the cause of your nausea.

            I don't have much experience with apple products, but I do recall a macbook plugged into one my good screens consistently gave me a migraine.

              Lauda89 thank you! Your experience seems similar to mine. Yes it must be a weird software thing I can’t get my head around- plus huge sensitivity to LED light but on this occasion that’s not the issue.

              Seagull thank you this is very helpful. Are there any settings to reduce the blurriness if this is the cause?

                ocean10 I am curious about this too. I have iPhone Xs with the latest software and I think it bothers me.

                @JonnyT -- which version are you running on the Xs?

                dev