http://www.framesdirect.com/Adidas-Prescription-Sunglasses-prescsgc/rxsgc-lanaoj-s-l-k-k.html
http://www.adidas.com/Eyewear/content/en/technology/lens_sightcorrection.asp
I have a pair of the advistas, I’m not sure the name of my wife’s but they are very similar. The cool thing about mine is that I can swap out lenses in about 3 seconds, switch from clear, to polarized sunglasses and even yellow to fit my environment. I can even wear them at work as my safety glasses with the clear lenses in. I would check for eye doctors in your area that carry them, my local one has pretty good selection of them to try on.
Adidas's site has about a thousand different varieties, colors, sizes..... She should be able to find something that fits her needs and style. Look for styles that offer the "direct frame glazing" having the same scrip across the whole lens is awesome, closest thing to not wearing glasses you can get. I've also noticed the technology helps with my red dots blooming; it doesn’t stop it completely but seems to knock it in half as compared to my regular glasses.
I'll go back to recommending the wrap around, they offer more protection, and offer a wider view for transitioning between targets and prone.