For proper fitting size of face & nose bridge you might consider going to web sites for swim goggles, to see if a range of sizes is even made in that brand. Local retailers may not offer anything but a Medium, so a Small or Large might require buying online, possibly direct from the manufacturer. Or maybe a friendly local store will special-order for you from a catalog.
I do that for my swim goggles, though in my case it's for lenses in my prescription. Otherwise I'm rather blind in the water. I also get a choice of 3 sizes (I take a Medium). Only drawback is that both lenses are pre-made to the same diopter, like drug store reading glasses, while my eyes have slightly different corrections, and these don't have other features I have in my daily glasses.
But they're good enough for swimming use, and much less expensive than custom made. Which are available, but a luxury I don't need. And BTW, they seal just fine, and last about a year or more, which I think reasonable. But I get these from an optician, not sure if any other stores have them off-the-shelf.