A couple of months ago someone posted about a pair of special
bifocals they had made. I finally got a pair, and let me say that
these things are FANTASTIC !
You get a big frame with your reading prescription on top, and 2X
(twice) that on the bottom. I opted for tempered glass, and I
recommend that the lower lens be set no higher than about halfway.
How do I love them ? Nothing to wear around my head, nothing to flip
up or down. They don’t interfere with my headphones or my dust masks.
No headband hair. Better optical quality than an Optivisor/glasses
combo. Lighter! Easier, more versatile. They work with an Optivisor
if you need it, even with the add-on loupe.
I would never go back. So, to all you vision-compromised Orchidians,
check it out! And thanks again to the original poster.