martin I have this " digital eye strain/pain " from 2015. I checked many doctors/optometrists and they affirmed that my eye health/vision is 100%.

I did many researchers on many languages about the issue ( Romanian, English, French, Russian languages). The most useful info that i could get from it is that this issue can be to your eye muscles. If they become weak ( after prolonged screen time or other factors ) your muscles are stressing more to focus your vision and that's where we feel the eye pain. Vision therapy should improve and strengthen your eye muscles over time if properly done !!!

      Allekss If they become weak ( after prolonged screen time or other factors )

      They can go the other way too. Too much close up work, strengthening them and causing excessive convergence like in my case. Then the recommended exercises are to look to the side to relax them

          8 days later

          ryans I still get eyestrain, but more in sore eyes, not much of migraines anymore, that is thanks to the training. It is still unfcomfortable over longer periods of time and I prefer to relax, read text or watch movies on my old win 7 laptop.

          Allekss It can really take time to find someone who can diagnose this properly. But its true, that is the purpose of eye therapy.

          daniel_mate Yes, the exercises are always designed to balance out the deviation you have, which can be in quite many directions actually, but mostly either eyes pointing too much to the nose, or too much away from it.

                  martin do you get motion sickness / dizziness still (or ever got it)?

                      ryans I get brainfog a bit, but not as bad as before and it fades faster when I take time away from the screens. I also get irritated/restless when exposed for loo long, which in my case now though is hours without break. However I recover fast. Sometimes I take two days off from all new screens. Not really much of motion sickness or dizziness anymore.

                        Allekss If they become weak ( after prolonged screen time or other factors ) your muscles are stressing more to focus your vision and that's where we feel the eye pain. Vision therapy should improve and strengthen your eye muscles over time if properly done !!!

                        Thanks for the updates, guys. Unfortunately, my story is quite different. Eye therapy has strengthened my eye muscles and got me some extra "eye skills" (I can now converge and diverge better than the average person, according to the three specialists I am seeing), but has not solved my precarious visual condition. I cannot use Windows 10 version 22H2 on my laptop without terrible discomfort (whereas I can handle the same version with much milder symptoms on 2-3 PCs at work). After 10 years without a television I bought a Smart TV, purposely choosing a low resolution (FHD) one as I have normally more problems the sharper the image is. Sadly, my TV time is a torture and it typically takes a couple of days to recover from 30 minutes of use. Mystery, I can watch most TVs no problem when I am at the pub, by my parents, in the dentist waiting room. More puzzling, despite all my efforts I still cannot tolerate most LED lights. Just sitting under LED lights triggers symptoms that last days.

                        My specialists have been clear since the start. They told me that, in their opinion, doing eye therapy could improve my condition by only 10-20%. None of them has a clue as to the reasons of my symptoms. I keep doing eye exercises because I have no other way out, they do not harm and at least produce some form of relaxation. The most sophisticated ones can also be fun. I should also add that I took home all my eye exercise gadgets last Christmas, and test my siblings' eye ability. To my shock, they could get everything right straight away. However, my brother-in-law, who has zero visual discomfort using electronic devices as my siblings, couldn't absolutely figure out how to successfully use a loose prism or a stereogram, which reinforces my opinion that heterophoria isn't enough to justify all I have been thru in the last years.

                            AGI I cannot use Windows 10 version 22H2 on my laptop without terrible discomfort (whereas I can handle the same version with much milder symptoms on 2-3 PCs at work).

                            That is interesting. What graphics is in the unusable laptop on Windows 10 22H2 but on the mostly usable PCs?

                            • AGI replied to this.

                                As a medical doctor I can say that this is self-hypnosis. The reason we are PWM/temporal dithering sensitive is our brain sensitivity (more sensitive), inertia of the nervous system and the fact we realize the reason of discomfort is a "bad" screen.

                                Actually, many people are PWM sensitive but they don't realize this fact. They just claim on fatigue, poor health, etc blaming bad working environment, bad ecology and so on.

                                It would be very interesting to learn/study the statistic between IQ and PWM/dithering sensitivity.

                                  I found an interesting study:

                                  ncbi.nlm.nih.gov/pmc/articles/PMC8212737/

                                  "Flicker refers to low VDT data refreshing rates below critical fusion frequency, the image on an OLED screen is not fixed, but refreshes at 60–90 Hz, which causes the brain to produce temporary vision and discern the screen as stable. In fact, the eyes can still feel the flicker, which easily generates visual fatigue. Conversely, the image on an eINK screen is fixed; thus, what the human eye sees is a real and stable picture without flicker. Another important reason for subjective discomfort is that because the wavelength of blue light is short, its focal point cannot fall on the retina, but instead falls a little in front of the retina, and the distance between the focal points in the eye is the main reason for the blurring of vision. In order to see the image clearly, it is necessary for the lens in the eye to adjust, which causes the eye muscles to remain in a state of tension for a long time, resulting in visual fatigue. The eINK screen does not emit light, so it does not produce blue light‐induced blurred vision and visual fatigue."

                                  • AGI replied to this.
                                  • AGI likes this.

                                    NewDwarf As a medical doctor I can say that this is self-hypnosis.

                                    I thought you were a programmer 🙂 You are a medical doctor too (or is this a typo)? The best medical neurological explanation for our problems I think is migraine or epilepsy. Binocular vision problems can also be a component.

                                    Still, it comes back to being able to use "older" tech fine...

                                        ryans Yes, I am a medical doctor but I left medicine many years ago. Currently, I am an information security expert.

                                          Lauda89 Sounds like an advertisement for Dasung :-) Haven't there been complaints of eyestrain while using e-ink as well, users blaming dithering from the OS? Also, I'm very skeptical about blue light being a major player. Blue light is the only natural thing in there, IMHO a problem only at night because it disturbs circadian rhythm. I have tried glasses, screen protectors and apps blocking blue light, and my eyestrain was unchanged. In fact, my eyes suffer more with very warm colors.

                                            2 years later

                                            @martin hello! I read some of your posts and you did mention that you found an optometrist that was able to detect your BVD while others said that your eyes are normal.

                                            Could you share your doctor's contact? Am I right that you found the right doctor somewhere in the europ?

                                            dev