I hope this helps: I wear glasses and one day on an enforced family shipping trip I nipped in to TK Max where I picked up a pair of very wrap-around sun specs for £12.99. I popped out the lenses and got them glazed for £50 to my prescription with the cheapest plastic. The lenses are quite thick at the edges and paying more for a denser plastic would have made them thinner but that doesn't bother me. I got them in single prescription and not vari-focal so reading a map or computer is a bit tricky but they protect my eyes very well as they fit snugly. Fogging happens when I stop if I'm sweaty but soon clears when I move.
Many opticians will shy away from glazing a wrap-around frame because they are worried about the thickness of the outer edges of the lenses and the very slight optical distortion - obviously a flat lens is optically much more the ideal. In use the edges don't show and the slight distortion is immaterial as soon as you start moving.
If you can't find an optician to do it, ask them where they reluctantly send specs for repair once they have failed to persuade customers to buy a new set. You will find that in every town there's a scruffy shop in a back street with a technician working miracles with glue, solder and tiny bolts who will know somebody willing to undertake the job for you at a very cheap price.