After figuring out what was wrong with my eyes and working on healing it, I wondered about the tech aspect of this problem. Since its so large with many variables, I started with the simplest one - why does Waterfox on my trusted system (win 7, old acer laptop) cause no issues, but firefox does? I found this article about webrendering and compositing - https://hacks.mozilla.org/2017/10/the-whole-web-at-maximum-fps-how-webrender-gets-rid-of-jank/
I wonder whether that could be the case? Maybe someone could explain better? I tried a test from this video - https://www.youtube.com/watch?v=u0hYIRQRiws (link in description) both on good Waterfox and eye-pain Firefox, its a lot smoother on firefox. So firefox is using different compositing (layers instead of refreshing the whole image) and utilizing gpu for that, which makes it smoother but eye-pain inducing? I cant place it within heterophoria, but basically - if part of the image is being refreshed while other part is still, as opposed to whole image being refreshed at the same time, maybe having one flickering part and one stable part of the site could cause different inputs in each eye and trigger heterophoria symptoms.
If we talk only about rendering being able to cause this (as is proven in my case with waterfox vs. firefox), and disregard all other possibilites to simplify this problem, my question is: how can computer image be rendered so that it causes different inputs into each eye? Would you have any input on this specifically?
I have another test for you to try as well - buy a simple paper pair of 3d glasses (red one eye, green the other) and try them on while viewing trusted tech. Does it induce similar pain as the new tech? Let me know. The 3d glasses make each eyes input slightly different because of different color, making the eyes to work a little more than usual to cooperate - which in case of heterophoria can be the last straw to send them into overdrive.