Does PolorVision fit over larger prescription frames or is it tight?

I think it depends on what you mean by larger. My frames are on the wider side but the arms aren’t super thick, and they fit okay. The bridge area is where I felt it gets a bit snug, so if your glasses have a really thick bridge or sit high on your face, it might push down a bit.

I have a pair of prescription frames that are honestly on the bigger side, mostly because I prefer that look, and they do fit but it’s not like there’s tons of extra room. The arms on my glasses are fairly standard though, not those thick chunky ones. I had to get used to putting the PolorVision on a certain way, kind of tilting it so the arms slide over without catching on my frames. Once they’re on, they sit fine and don’t feel like they’re squeezing my head or anything.

I don’t think I’d want to go much bigger than what I have, but for my day to day driving they work well enough. I mainly use them for longer trips and they stay put pretty good. If your glasses have really chunky arms, that might be where you run into trouble.

Mine sits fine over my glasses but the sides do press a little after an hour or so.

Mine are chunky, thick framed plastic things, not wire rims. They fit, but it’s not a clean slip-on situation. I have to angle them a bit so the arms don’t dig into my temples. Once they’re on, they stay put, but I wouldn’t call the fit “comfortable” for a long haul drive. It’s more like “tolerable.” The nose bridge on the PolorVision sits higher than I’d like, so they sort of rest on my frames instead of my face. That’s fine for short trips but after about 45 minutes I feel the pressure. If your glasses are really wide at the hinges, I’d be a little cautious. There’s flex in the arms, sure, but it has a limit. I’d rather they be a bit roomier than they are.

The arms on mine sit fine, but the bridge is where I notice it. If your frames have a thick nose pad area, it pushes the PolorVision forward a bit and changes how close the lenses sit to your eyes. Not a dealbreaker, just something to expect.

I would say it depends on how wide your frames are at the temples. Mine are pretty bulky and they fit, but I did have to get used to the extra weight on my nose. I mostly just use mine for longer drives now, not quick trips.