I had a book based on the bates method and remember doing some exercises that were helping my vision but I didn't keep doing them....
Lack of discipline, I guess.
One of them involved looking up and back to center, right and back to center, down and back to center, left and back to center, while keeping the head stationery.
Also widening the eyes for about 2 seconds then squinching them tight, but still open, for same time.
Palming is good too, crossing the palms in such a way that almost all light is blocked out. I used to palm for about 10 minutes after I got into bed and it really helped with eyestrain.
You were asking for vision links so here's another
I was just also thinking of some glasses I ordered, oh, probably 20 years ago. They sort of looked like a grill, with tiny little square holes across the lens.....believe it or not, when I wore those, I could see the tv better. They were supposed to help improve vision if you wore them all the time but, like the eye exercises, I lost track of wearing them and then I lost them altogether.
I wonder if that was just a gimmick or if they really might have worked if I'd kept at it. What the heck were those called? Anybody else remember those?