A couple of weeks later I got the call and went back into the store. Tried both pairs of glasses on. The lenses were fine, I could see the difference between the new prescription and old immediately. The frames, however...
One pair, the one I'd decided would be my main pair, was far too tight and was crooked. The spare pair was also crooked, in the opposite direction, and was so loosely fitted that merely moving my head sent them slipping half off my face. I pointed this out to the optical assistant. She basically said that I must have moved when I was being measured and that next time I should hold absolutely still so as not to waste their time. She then took both pairs into the back for adjustment.
This didn't fix them. I was stuck with a main pair of glasses that actually left gouges behind my ears, and a spare pair that I couldn't wear outside because a light breeze would knock them off. And because I didn't want to run into that same assistant again and deal with her "it's your own fault" attitude, I didn't dare go back to complain.
2) I had my eyes tested again a couple of days ago. I'd not been to get them done for about two years, and I couldn't remember the name of the last optician's I went to, only that it was an independent, 1-optician place.
All went well, lights were shone in my eyes, questions were asked, etc. I was told I needed new glasses (no surprise there). And the optical assistant was determined I was getting them from there. Preferably that same day. Even after I told her that I'd need at least three weeks before I could afford new glasses. She would not let it drop. She held onto my prescription card, seemingly not hearing me ask for it, going on about how she was sure if she spoke to the manager he would let me arrange a payment plan and how they'd only need a 50% deposit. The look on her face when I told her that 50% of what she'd quoted me for lenses alone was more than I had in my bank... it was like she'd just stepped in something a horse had left.
As I left, I heard her talking to one of her colleagues "scroungers like that should be forced to go without glasses and then maybe they'd do some work".