bkdo Was there any indication on what was causing the spasms?
Twitching was almost solely on the left eyelid and sometimes around the left side of the mouth. After seeing me at the clinic 4 times within 2 weeks and observing the twitching himself, the eye doctor prescribed the brain MRI. The communication was not great because of the language barrier but the neurologist could speak better English and told me that they were after any anomaly of the left optical nerve, specifically, if it was pinched somewhere. Ironically, he concluded that not only the left and right nerves looked the same, my brain looked very healthy.
bkdo did you have flicker symptoms during the test at all?
I had my head inside an integrated sphere for about two hours. I do not have technical competencies in this field, but in some cases I was bombarded by bright flashes of light that I would call stroboscopic. Only in that case I felt moderate symptoms. I cannot tell why electronic devices can instantaneously drive my eyes and neck way more insane than those flashes. Perhaps the frequency is different?
Otherwise, most of the exam consisted of following a LED light of modest intensity traveling from the center of the sphere to its far right, then back to the center and to the far left, moving only my eyes. A part of the test simulated night conditions. That is where I am borderline. I was told to try increase my intake of vitamin A.
I am due to see the neuro-ophthalmologist soon to discuss the VEP results. I will let you know.
bkdo have you had luck with an eyepatch or prism lenses before?
Kind of. I used an eye patch intensively at the end of last year. Perhaps too intensively (like, hours a day while I was fighting new problematic working conditions (new screen and LED lighting) and while I was working around the clock. One Saturday my eyes sort of collapsed. Like, I could not even look at a road sign without my eyes crossing. I freaked out and stopped using the eye patch. Also, those days I saw an optometrist to test for the Irlen syndrome. He suggested me trying reading glasses (but not the ones for presbyopia - specific glasses to correct my slight tendency to converge excessively) and he warned me about the potential downsides of using an eye patch. He found it useless and potentially harmful in my case. Whereas the orthoptist had agreed to the eye patch and had said that there was no risk of developing amblyopia at an adult age.
bkdo they specifically asked me to come in for the EEG as sleep-deprived as possible
Interesting. One of my long-standing issues is sleep-deprivation. However, I have never had issues when completely sleep-deprived if I was using a "good" device. Also, two days ago I nearly skipped sleeping at all, like, I just had a 2 hour nap between 6 and 8 am. My eyestrain was better than other days…I recalled reading the same from other guys of this forum.