Doing better than bifocals for dive masks?

[Arctic Mike]

That won't work, because the refractive index of water and glass are too close to each other. Lenses have to be in air to work.

So much for that idea! I don't think my old glasses would work because they are very small frames but I will try to see if they'll wedge into a mask.

[FW]

So much for that idea! I don't think my old glasses would work because they are very small frames but I will try to see if they'll wedge into a mask.

Try adding stainless steel "safety wire" to the hinges, to make them "bigger" so they will stay in place. It doesn't have to be too tight, just enough to hold them in place until you can get the mask on. Your nose will do the rest