Oakley has its own line of prescription frames. It's called Oakley Rx. Generally, these frames don't have the same curvature as the typical Oakley. Most places won't do it because in order to prescribe Oakley ophthalmic frames they must be an Oakley authorized dispenser/dealer. Unless your vision is really bad. I'm talking -6.00 and above, or +4.00 and above, just about any regular Oakley frame, not necessarily Oakley Rx frames, can accomodate it.