So this thread has been going on for about 4 years now, and I haven't found a single thing that helps with this flicker sensitivity - until a few weeks ago. I've been doing occlusion therapy for about ~3 weeks now, and have absolutely noticed a huge difference in flicker symptoms by covering one eye with an eyepatch. By covering my left eye, I have a minor/medium reduction in symptoms. Covering the right eye gives a medium/major reduction.
I spoke to my optometrist about this, and he suggested that this may be either the eyepatch helping with a binocular vision dysfunction, or helping simply because the patch reduces the raw amount of flicker I'm seeing. The patch isn't a viable long term solution due to issues with overusing it, but it could potentially help indicate an issue with BVD. I'd be really interested in seeing if others have any kind of success with this, it could be a step forward with our situation.
For reference, I wore the patch on my left eye for a week, wearing the patch for 4-6 hours a day. Then I did a week with the patch on my right eye, same usage times. In both cases (especially while patching my right eye), I saw a noticeable reduction in my usual symptoms (Gritty eyes, eye strain, pulsing pain above temples, headache, nausea).
This may end up being nothing significant, but it's the first thing that's actually worked for me in 4 years, I'm really interested in exploring it further. Has anyone ever tried occlusion therapy with any success?