Quote:
Originally Posted by DanielSt
Aha, so my current Kindle probably uses anti-aliasing.
Recently, my symptoms using my laptop have gotten worse, and I turned off anti-aliasing using a program called Iris. I did actually feel a relaxing of my eyes while looking at text upon doing this, but I still get the symptoms. So anti-aliasing might cause some kind of discomfort, but it does indeed seem likely that it is not the cause of the main symptoms.
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Thanks for the suggestion. That would be worth trying. I am actually OK with my e-reader now; I have been trying to figure out the cause of my symptoms from my laptop. If it was anti-aliasing that caused my problems with all the other e-readers, it could be anti-aliasing that is a problem on my laptop (or most/all laptops) too. But I installed a program called Iris that (supposedly) turned off anti-aliasing on my laptop (setting: "Simple fonts"); I did notice a relaxing of my eyes when looking at text, and switched back and forth between anti-aliasing (the "ClearText" setting on Iris) and "Simple fonts." The alternation between tension and relaxation was reproducible. But the switching to the "simple fonts" setting does not seem to have had an effect on my symptoms (which are brain fog and fatigue).
Thanks again to everyone for your thoughts and suggestions, this is really helpful to me.