Man of Honour
Gradual aging of my eyesight caught me out on that. I hadn't realised how suboptimal my other glasses had become for chair to monitor distance. Acclimatisation by slow change. Or Goldilocks with glasses - normal glasses were too far, reading glasses were too near, intermediate glasses were just right!
If you're old enough for your eyes to not be as flexible as they once were (>40, roughly, usually) a test might be worthwhile. You can go as far as measuring the distance and having glasses for that exact distance.
In my case it's not as big an upgrade as going from software rendering on a 486 to a Voodoo card, but it's bigger than going from a 1070 Ti to a 7800XT. Money well spent.
If you're old enough for your eyes to not be as flexible as they once were (>40, roughly, usually) a test might be worthwhile. You can go as far as measuring the distance and having glasses for that exact distance.
In my case it's not as big an upgrade as going from software rendering on a 486 to a Voodoo card, but it's bigger than going from a 1070 Ti to a 7800XT. Money well spent.