AGI

Yes, I think that "decreasing the resolution helps because it reduces dithering". But I have no knowledge in the area, sorry. I just turn the switch and feel less pain. All people here have very different health conditions and I cannot guarantee that my solution will work for anyone else. But give it a try, SwitchResX has 10 days trial.

What do you mean with "not scaling ratio"? — When you change resolution in macOS Settings app, you change only the size of elements on the screen. It is always 2880x1800 native retina resolution.

  • AGI likes this.

    I have a 2015 13inch MBP and it causes the same issues for me, migraine headache and other such symptoms for a few days after use, I have the free version of switchresx but it doesnt have the option to reduce the color depth as its already at 'millions' does paying for it unlock additional settings as in thousands / millions / billions etc?

      HAL9000 no, if it's already on millions — that's it. you will get nothing new. I guess the more important part (at least for me) is setting the resolution to exact half of native

        7 days later

        bowenjin I’m in the exact same situation. I can use my MBP 2015 with zero issues, but anyt other model after that year causes the same symptoms that you mentioned.

        I’m curious: do you also have eye strain with the new iPhones at all? I personally can’t use the OLED models due to PWM, and the XR/11 are no better (No idea why though, they have LCD screen but still cause issues). If I had to guess, it’s almost like they took whatever dithering method they were using on recent Mac hardware and copied it to the latest iPhone LCD screens 😞

            bkdo In my case, i am using an iPhone X with zero issue even without glass (0.5 astigmatism). But I can't use any MacBook even with an external monitor so I think that the problem is not the monitor itself but the OS / GPU driver!

            • AGI replied to this.

                Lauda89 i am using an iPhone X with zero issue even without glass (0.5 astigmatism).

                Do you have any benefit from a 0.5d correction?!?!
                At first glance the iPhone X looked perfect to me but after a few minutes of testing in a shop it would cause scaring long-lasting symptoms. Same with Samsung S10. Not mere eyestrain, more like a seizure.

                bkdo do you also have eye strain with the new iPhones at all? I personally can’t use the OLED models due to PWM, and the XR/11 are no better

                I have not been in a phone shop for ages, at least a year. Back then the only phone which looked fine to me was the iPhone XS, no clue why. It was too expensive to take a risk though.

                      AGI At first glance the iPhone X looked perfect to me but after a few minutes of testing in a shop it would cause scaring long-lasting symptoms. Same with Samsung S10. Not mere eyestrain, more like a seizure.

                      I wouldn't be surprised if the heavy PWM + infrared LED flashes would cause problems 🙁

                      • AGI replied to this.

                          JTL Which infrared LED flashes? You mean the FaceID thing? It should not be on all the time though, should it?
                          I am not an iPhone guy but I believe that also the iPhone XS features FaceID.

                          • JTL replied to this.

                              AGI You mean the FaceID thing? It should not be on all the time though

                              I've hard some claims stating otherwise.

                              AGI I am not an iPhone guy but I believe that also the iPhone XS features FaceID.

                              Yes, even more puzzling.

                                  Maybe you can watch the infrared sensor through a camera to see if it's on? I looked at my TV remote with my smartphone's camera, and saw a light whenever I pressed a remote button. It looked like a small LED.

                                  • JTL replied to this.
                                  • AGI likes this.

                                    KM That's true, but I don't have an iPhone X/XS to test with, and it might be awhile until I can see someone who does.

                                        How's this for a good one... my PERFECT Macbook Pro 2013, that I have used without ANY problems for YEARS, along with 2 x Dell 23" CCFL LCD monitors, has "gone bad" on me.

                                        Most bizarrely, I packed up the macbook, monitors, cables (ie everything) and brought it all home so I could 'work from home' under our local Covid19 lockdown. I plug it all back together and all of a sudden I'm experiencing insidious low level headaches and eye strain. Now this is a setup that has proved utterly faultless for me over the years. I've tried no lcd lights on, different angles, distances and various permutations such as resetting the PRAM. The OS does not appear to have had any recent updates either.

                                        I've now completely reinstalled the laptop to an older OS - High Sierra - and, well, the problems are still evident. So I'm at a loss...

                                        Fortunately my good PC is still workable so I am able to be productive. The thing is I experienced a similar situation with my PC (but not laptop) a while back. Things came right - around about the time I got my prescription updated - so maybe my prescription has changed??! But I don't totally buy that. Then it was PC bad, laptop good. Now it's laptop bad, PC good.

                                        Either way, I cannot get my eyes checked due to the COVID lockdown and probably won't be able to for quite some time. All told, I'm completely bamboozled by all of this.

                                          Seagull is your lighting situation at home different?

                                          @AgentX20 I would ask you the same question. I could not believe how much difference the lighting makes until I took my device home from work. At home I am okay except for the long-term damage from office work. In the office I cannot concentrate, I get eyestrain and neck pain within minutes, and I need to keep taking breaks and look elsewhere. It feels like gasping for air. I suspect it is a combined effect of fluorescent and LED light coming straight from the lamps into my eyes and offensive light reflected by the glossy screen. The visual experience looking at the screen is very different in the office and at home. It is like two different displays.

                                          AgentX20 So I'm at a loss...

                                          I experienced the same. Months into my new job under the overhead lighting I described above, my phone started looking bad. Earlier I could use it as long as I wanted. I blamed an auto update but now I am not sure anymore. I think my eyes accumulated so much stress from trying to cope with the new lighting, that at a certain point I developed some undiagnosed condition. I say undiagnosed because I visited multiple ophthalmologists, an orthoptist and a neurologist. I had even a brain NMR taken. No one found a worsening of my eyesight. They could only witness eye twitching, which has become an inseparable companion under those lights. This to say, it does not mean that your prescription needs an update. It could be else which goes unnoticed by doctors. I do not know how to call my symptoms, I just know I am "allergic" to certain lighting conditions which are fine for most people.

                                          • JTL replied to this.

                                                Seagull is your lighting situation at home different?

                                                Fluorescent tubes at work, and leds at home (these don't cause me problems generally speaking).

                                                  AGI Not really with the iphone X. I had a big improvement with my notebook (Dell latitude E5550 W10 1809). Now I can use it all day with zero issue, before the correction I had low eye strain with it (usable but not totally fine)! Unfortunately I couldn't try the MBP 16" with the correction because I sent it back before I get the eyeglass! I am planning to try again the MBP 16" 2020 at the end of the year, it's should have the mini led display also.

                                                      Seagull Yes, I have the same experience. I bought exactly the same setup I had at work, to use at home, only to then realize how the lighting is completely different in those two environments. Unfortunately, I have a lot more of natural light at work (in part because I'm at work during the day), so at night at home it's always a lot worse..

                                                        JTL You are right, sorry.

                                                        Quoting:
                                                        In current use...the term NMR is preferable when one is describing the physical phenomenon itself or when referring to the measurements of the nuclear induction signal in physics or chemistry laboratories. The word "nuclear" is dropped when referring to imaging or spectroscopic techniques for humans or animals. Most scientific journals prefer to use the phrase MR imaging (rather than MRI) when referring to the clinical technique.

                                                        The goal of the analysis was to see if nerve pinching was the cause of eye twitching. No anomalies were detected.

                                                          dev