KM The trouble started 15 years ago
I see, thanks. Similar to me. I seem to have problems with artificial sources of light in general. I too cannot figure out a common root. It is definitely getting worse though. In the past I could always find a decent solution although I needed some adjustment compared to "normal people", and I never felt into the current state, that muscle twitching is becoming unbearable. I am using the same devices of a few months ago, I cannot really understand why a condition of my eyes would manifest itself all of a sudden.
I just uninstalled Office from my Mac, which is, I believe, the only thing that got updated in correspondence of the surge of the symptoms. I contacted MS's customer care and they did not even bother answer my query on the eyestrain, they likely judged me hypochondriac.
I installed Iris and set it to 3400K/60% brightness with the hardware brightness at max during the day. I am also testing this screen protector
https://www.amazon.com/gp/product/B072VSY991/ref=ppx_yo_dt_b_asin_title_o02__o00_s00?ie=UTF8&psc=1
However, the twitching continues. Hard to single causes out though, as my phone causes me strain too and environmental lighting is something I cannot really fully master.
Pretty much desperate.
I would really like to know why convergence/accommodation would eventually affect my viewing experience only for electronic devices and not for paper/e-ink. Also, a device used for 16h a day without any problem becoming intolerable after an update sounds like a spell rather than a medical issue. Bah...
@Harrison or anyone else. How do you send PMs? Thanks!