You could even have eyestrain just using the front light which again has nothing to do with PVM/flicker. You could have eyestrain from being tired. Maybe you are in the beginnings of a cold or other illness. There are a number of reasons that have nothing to do with PVM/flicker.
So the thing is, unless you know for sure it's the device causing the eyestrain, then you cannot say that the PVM/flicker is a problem.
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