Thanks for everyone's comments on past entries on my blocks and triangles in the manner of Jane Stickle.
Following some people's advice, I did buy 'cheaters' or reading glasses, and put them on OVER my current glasses. Wonderful! I can hold my applique work at my normal working distance, not so close that I might poke my cheek with the needle, or hit my eye with the back of my wrist. So I have been pushing ahead with the applique blocks.
I do admit to some continuing eyestrain. Not nearly as bad as before.