@boomerang,
My glasses are always serious business. A while back I needed a temporary pair before my next eye surgery, after which insurance should pay for the one pair after that. People suggested Walmart. I hate Walmart. I shut myself up and took myself to Walmart, where my glasses were too complicated, but they had a guy they referred me to. Curmudgeonly old guy (I can relate) in a truly ugly building. But, I liked him. Turns out he didn't mind if I used my old frames (yack, but ok). So, for trifocals, not the very thinest polymer (or whatever you call it), non scratch, uv protection, it came to something like $140., the lowest I've paid in years.
My idea of eyeglass heaven, which I visited once, some years ago, was a good pair of prescription sunglasses. Ms. Picky likes a kind of brown red tint, which is said to be good for people with rp. I have to be careful, as sunglasses can make things too dark for me in some situations, and then I need the glass to be crystal clear and bright. (Driving through high intensity light with dark shadows, oh, say, a redwood forest in summer..., some times of day even in New Mexico). Prescription sunglasses, a big luxury I'd like to have.
Next time, I'm going to go for bifocals (vision changes), but with a bigger part of the lens doing the work. I forget the name for that - but I like widescreen, much as I can get it. My favorite glasses years ago were a then trendy pair by Liz Claiborne - huge with black frames. Made me look like a younger female George Burns, or maybe better, a chubby old 'n wrinkly Audrey Hepburn - but really helpful vision wise.
Assuming insurance pays for my next ones as part of the surgery, big assumption, I'll do some looking around for the ophthalmalogically best place in town. Otherwise, back to the nice curmudgeon..