hpst Of course is my opnion.
But to me a fact is that, there are 2 motives? 2 mininium. One internal and other external. The proof that the internal exists is that just a minority of people seems to have this issue with LED's display. The majority of population itself, dont have. So there is something diferent inside our body. Now it can be one cause or more. We just dont know. But to me there is no rationality that can dispute this.
And there is the external one. The actual dithering/other unknown/blue light/etc. Again, it can be 1 or more. And again there is no rationality that can dispute this.
But at least 1 internal and 1 external does exist. Dont you agree?
There is a external trigger/action and an internal reaction. This internal reaction just happens to some minority.
I answer to your question on the following way. I dance a lot. I know several people from dance scene who develops knee pain. And altough related, there are pain because diferent mechanisms. Some develop tendinites, some is cartilage, some meniscus. Dance just happen to make this problems occur. There is suddenly, lots of strain of knee system which is not used to. And partially people developing this issues are people with pre-related issues. The same might be analagous to the eyes-displays.
What does "likely" means actually? It seems to me that the sun is moving not earth, and someone after all proved otherwise. We have to be carefull with the likely and appearances.
Listen the maybe is necessary to make hypothesis and prove it wrong.