down side is they only do single vision for now. Sucks to have old eyes
I bought a pair of "ESS SUPRESSOR" wrap arounds. There is a prescription insert, which the company can fill via an optometrist that they use. I asked my own optometrist and she said the price was about the same. However, I'm sure that, since your optometrist can grind the lnsert lens, you can probably grind them how you want.
HOWEVER, I find the goggles/glasses with the insert to be a bit front heavy. They come with a strap, but with ear-muffs, the strap bugs me. For CAS, I'm not sure, since nobody wears ear muffs for CAS because of the hat.
Another hideous option that I've used is wearing my normal eye-glasses and using a horribly ugly pair of "blue blocker" over-the-glasses yellow goggles, that I permanently borrowed from my Dad. They are ugly, but they fit nice over glasses and cover the sides well.