ok i don't know anything about white mesh contacts in prescription being available (i'm actually looking for those too) but oh my gosh please DO NOT !! wear two pairs on top of each other, unless your eye doctor tells you to do otherwise.
it can cut off oxygen to your eyes and that is not fun. if you feel like it's your only option, don't just go and do it, ask your eye doctor about it for a definite answer.
an alternative option could be wearing the non-prescription lenses and your normal glasses, and taking them off for photos and such. that way, you can still see most of the time! besides the foggy vision from the mesh, of course eheheheh