Even if you tear off a leg or arm or both we'll still love you or your parts in that case
. Bad joke, but that is true.
But if i say seriously, no nonsense, firstly I personally wish you all the luck that you might have, because you are a true professional. And if it comes to that point, and choose between seeing and playing, you've done the right choice. And I think in any case it is necessary to not return to the game, at least in some time. Believe me, I know what I mean. Anyone, even the most sophisticated monitor does not help you keep seeing, if you're working on it 4 - 6 consecutive hours or more. I have worked such way before, and noticed myself that the quality of my vision decreased significantly in a couple of years. I am an artist-painter, and since my vision is not just a thing that should be, it is more important - a key factor, I eventually decided to reduce the intensity of my computer work. Much of I loss does not return, but at least my vision at least not deteriorate further. Intensive using of CPU is straightly linked with eyes troubles, that is real medical fact. I hope my point of view is clear: if you choose between a computer or a vision, strong eyes is more important in any case.
And anyway I didn't wanna to teach you, even don't know you personally in fact. The only one major and important thing what I can say, just take care of yourself, and God bless you.