I think in the case of keyboard shortcuts, I was able to look away from the screen while typing, or at least, not focus so intently. The touch screen might be a bit more hypothetical, but I think it doesn't require as much visual acuity, so can relax my eyes a bit more.

I've read that frequently looking away from the screen, so your focus doesn't remain fixed to one position, is helpful for eyestrain. Thanks to touch typing, I can write text and even code with my eyes closed.

Of course you know how it goes... other things may have changed at the same time.

> I've read that frequently looking away from the screen, so your focus doesn't remain fixed to one position, is helpful for eyestrain. Thanks to touch typing, I can write text and even code with my eyes closed.

Interestingly, not knowing how to touch type would also mean that you frequently switch your eyes from the screen (to look at the keyboard). In fact, as someone who has learned to touch type but is still making a lot of mistakes, my eyes are much more glued to the screen than when I used to have to look at the keyboard to find my place again.