Finding an optical shop associated with an eye clinic, either at a hospital or university, should suit your needs.
I tagged along with my visually-impaired family member on a trip to the UC Irvine eye clinic and got my own glasses done through their optical shop. It was the best experience I've had getting glasses! They had the lenses made elsewhere but then shipped to the location and fitting to the frames in about 30 minutes!
Based on your post history, it looks like you're in LA County. I got mine done at the UC Irvine Optical shop:
$1