I also had issues with my eyes, which fit the symptoms described. I solved it by wearing glasses with a varying dioptric up and below the centre. That way your

I also had issues with my eyes, which fit the symptoms described. I solved it by wearing glasses with a varying dioptric up and below the centre. That way your eye has to re-focus as you look up and down on the screen. The glasses also have a tinted glass that's supposed to help. Mine are from the company starting with Gu... when searching for "computer screen glasses".