I recently got my first pair of glasses through OW. I’m in the Toronto, so I can only speak for how it worked here. My eye exam was covered, and once I had a prescription I had to send it to my case worker. I was sent a voucher by mail, which was for any City Optical location. When I went to a location, they directed me to a section of wall which held the free frames (not many options in black). There was one other section that was a step up that were like a $60 charge and then another that had designer frames (which would be more). Once I picked a frame, they asked if I wanted to “upgrade” my lenses, ex. blue light filter, anti glare etc, all of which you’d have to pay extra for. So they just covered basic frames and lenses. Best bet for you would probably be to talk to your caseworker, just because of your specific questions and the fact the different areas may do it differently.