I usually go with an oversized pair of ANSI approved industrial safety jobs. They just fit over my glasses better.
That's actually another interesting point, they shield my eye but are also protecting my prescription eyewear from shells and such.
To deal with the discomfort of 2 pairs of arms pressing in the side of my head under my ear protection, I got custom ear molded plugs that are as good or better at decibel reduction than the muffs.
Maybe I am too cheap but, I am just unwilling to invest in prescription shooting glasses that I will have to change every couple of years with my prescription.
The whole thing is that buying an expensive pair of protective glasses will give you no more protection than regular work safety glasses. They are built with the same specs involved. The advantage is that when the lenses start to get scratched, you can just throw them away. Just buy another pair, as they cost less than $10. Try that with a pair of Oakleys!!!! I wear a pair of wraparounds daily, and still don't worry about somebody walking off with them. dozier