Classic Optical Frames - 5 Colors

Any suggestions on getting the prescription placed once one purchases these frames?

Google ‘Costco glasses’ and see the first two articles, one from Consumer Reports, the other from They both recommend Costco, the latter gives a firsthand account of doing that - outside presctiption and frames, lenses made by Costco.
I got my glasses there (progressive bifocal, polycarbonate, anti-reflective, anti scratch HD lenses) and Furla frames; the lenses were $130, all above options included. High-index lenses start at $100. They also include anti-scratch and anti-reflective free.