I knew a guy in college who had to do this, he had a degenerative eye disease or something that no amount of glasses, hard contacts, or whatever could fix. It seemed like it royally sucked, but he always seemed in good spirits.
Except I vaguely recall he impaled his own leg on a sharp branch while jogging because he couldn't see it. That would suck.
Had project manager at previous job the same. Worked about 3" from his screen. He was the proof that a good project manager is worth their weight in gold though. Guy was absolutely brilliant.
I know a guy with what sounds like a similar condition - in his case most of the colour receptive cells in his retinas are fucked, it's a genetic thing that ment they didn't form correctly in the first place. Not really anything you can do surgically, it's not like cataracts or stigmatism where the retina is ok but the light isn't reaching it correctly.
He wears highly tinted sunglasses cos it turns out that those colour cells are also really heavily involved in adjusting your iris to ensure you get the right amount of light, so his eyes adjust to changes in brightness much slower than normal which can be physically painful if he (eg) turns on the lights in a dark room
I knew this guy when I was a kid, who could only play SNES and Sega games with the control upside down. This was before mapping and being able to toggle things how you want them, was a thing.
He'd hold the controller upside down and always sat sideways to the tv while looking at the tv from the side. He said it was the only way he could play.
By being this close to the screen, he reduces the latency created by the photons traveling between the screen and his eyes, therefore giving him a significant strategic advantage over his opponents.
"Hand forged in the deepest basement, this keyboard has ultimate compatibility! Every key from every language, at my fingertips! 38 usb cables with the raw power to transcend operating systems and control multiple computers simultaneously... Oh ho ho, but that's not even the true power of this keyboard. See these skulls? These are all that remains of the former owners... Lost souls, desperate for minimal latency, all lost their minds, and lives, by using the forbidden Synaptic Link. The one I will use to defeat you!"
And then he plugs a cable into his brain or some shit and they play a round of starcraft. Feel like I started in a corner and wrote myself into a different corner.