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This is interesting, I am glad it works for you. It seems somewhat similar in spirit to "binasal occlusion" which is used in vision therapy:
A solution at last, hope it lasts!
ryans binasal may be an even cooler look than the eyepatch. seems promising and simple. Maybe we can get one of these researchers to adopt us and sponsor the scotch tape. https://cdn.ymaws.com/www.covd.org/resource/resmgr/ovd40-1/article_tbibinasalocclusion.pdf
TBI was a big thing several years ago with football players, a couple of movies etc. surely we can get a doctor/ researcher to adopt us.
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Hi, sorry to hear that it didn't help you. I'm getting mixed results with them so far - they seem to help for some devices and not, or not so much, for others - it might be that I'm sensitive to different things and the blinkers help with one of them. It'll be interesting to see how others respond to blinkers too. Thanks for your feedback 
Found this video after seeing your post and searching more about binasal occlusion. This lady had pain watching tv and the binasal occlusion glasses (just tape on the inside of the glasses) helped her.
Have you tried this btw?
Here is more information about it
3 months later
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I think that, in some cases at least, the blinkers can help reduce symptoms (even if they don't eliminate them), and this can be helpful in increasing the time we can spend with a device or while we are trying to adapt to it.
With the idea that they maybe work by reducing the amount of flicker reaching our peripheral vision (which is more sensitive to flicker) I'm trying a further reduction by partly covering the lenses too. It seems to have improved the usability of the pwm-free Latitude 7390 without having to turn off font smoothing like I was doing earlier coz it helped. More testing required coz I've only tried it for a short time so far.
I've read before that peripheral vision is actually very important to our sight, it's what helps us appreciate distance and focus on further objects. So it could be wrong to block it in a long term fashion.
Liberator005 yes, probably a good idea not to overdo it. I felt a bit strange for a while when I reverted back to normal mode after doing it for maybe an hour though it was ok while I was doing it.
18 days later
you might get good results with just the nose thing? binasal occlusion
I did a full-scale test of the blinkers, based on this forum thread, a few months ago. It was remarkably effective for my laptop, a Lenovo Ideapad 100S, which I already do pretty well with, but which causes me symptoms if I use the screen for too long a time. I was now able, with the blinkers, to use my laptop seemingly indefinitely without symptoms.
With my tablet, however -- a Samsung Galaxy S3, if I remember the specification correctly --, which causes me terrible symptoms almost immediately, the blinkers offered some help, it seemed, but it really was of no practical utility since after a few minutes the symptoms were still very bad (less dramatically instantaneously awful, but still quickly very awful).
After about five or six weeks of consistent use of the blinkers, generally for multiple hours every day, I started having vision problems when I was not using the blinkers. Without the blinkers, I could no longer focus on text, whether in a printed book or on a screen: the letters appeared double, and blurry. My general distance vision seemed unaffected, but my vision when I tried to read something without the blinkers was totally messed up.
I completely stopped using the blinkers, and the vision problem continued. It took about 3 or 4 (worrying) weeks until the problem resolved and I can now thankfully read text normally again.