One down side I see is not being able to try them on. I don’t know how many I have to try on in the store before deciding on something. Maybe you have to order several at a time and hope one pair sits well, and send the rest back.Why settle on local supplies and their available styles? You can send your prescription into many reputable safety glass manufacturers and they will hook you.
SGUSA Store | Prescription Safety Glasses USA
And if you have even a slight astigmatism like I do that determines what materials they can use. No cheapy plastic can make that correction.My optometrist at Walmart is a gal I've known since high school, and while she's not a shooter herself she's given me a lot of pointers about prescription eyepro--try asking your local Wally's Vision Center about polycarbonate lenses. (My prescription actually REQUIRES PC's because it's the only material they can do super-high-index lenses in.)
My eye Dr. knows I shoot and has worked with my on my lenses. Even suggested when it comes time for new lenses, that I should consider bringing in a rifle with a scope so they can help provide lenses that will line up properly with line of sight on the scope. I don't know if many eye Dr.s would be okay with that.