Well, I wear glasses to correct my myopia (slightly worse in one eye, but quite noticable in both), but find it much easier, and more comfortable, to achieve photophocus without them.

I always take them off before I photoread, then just make sure to adjust my distance from the book for clarity. So long as I stay within 45cm of the book, the letters appear crisp, and my eyes are relaxed.

I hope this helps. Be well.

Sceptor