I play primarily on PC and sit pretty close to my monitor (about a foot away for a 24" monitor). If I need to read something specific, I'll either use windowed mode and Windows Magnifier or
$1 I picked up at Target for $10 or so.
We also have a larger TV in the living room for when I play on consoles. The bedroom has a RetroPie I set up for her and I to play older console games together, and she'll sit on the bed and I'll stand to the side or sit on the edge of it closer to the TV so we can play together.
Some of it is also adjusting/knowing my limits for games in general-
I don't care for FPS anyway, but wouldn't play that or LoL-type games where I'm part of a team that needs me to act/react quickly. I'll generally play ARPGs where I can be solo or part of a mob rather than a specific group. Also turn-based strategy games where amount of time spent doesn't matter.