Seconding this. I have a very minor astigmatism in my right eye. Getting it corrected with custom reading glasses instead of just using regular readers, even though perceptually it's fine with the cheap ones, is night and day in terms of eye strain and headache. I was genuinely surprised when I figured out how much of a difference it makes.
Whoa. So, on a whim, I got my eyes measured when my wife was picking up her glasses. Very slight astigmatism in my right eye.
And like you say, even though it's a minor abberation, the difference it makes in fatigue is incredible, especially after a day of coding work behind a screen..!
Straight up the best 200 bucks I spent in terms of QOL improvement. Well that and a very nice thick blanket to sleep under.
