The glasses are fine for reading so the prescription is correct. It's just that they are useless for computer work, of which excessive amounts of time in front of a monitor caused my layoff. I was recommended to sit closer to the monitor but at the range at which the glasses begin to work I am too close to the screen and cannot see all of it at once. If I continue in that manner then I could well end up like the actor in the picture, left (Ben Turpin for those of you under 100 years of age.)
I have resorted to moving the screen further away so that my eyes don't get tired from working too hard at focussing. The glasses I just use for reading things in my hands; books, fiddling with electronics and so on. I am having to take rest breaks, which I never like to do once I get into the flow of things. There is the 20-20-20 rule; every 20 minutes take a 20 second break to look at something 20 feet away. By the time I notice the time, an hour or more might have passed. I am just too used to pushing myself past the pain and continuing to look through squinted eyes.
My work output has decreased a lot in the past month but I will gradually increase it again. However, I am not sure that I can work at the level I once did before the eyestrain. It's a case of quality over quantity, concentrating on the next book more than anything else. Some coding and research when I am up to it. Thanks to all those who wished me well.