Oakley just released some new technology that goes from +4.00 to -6.00. Its called Oakley True Digital Edge. If your prescription isn't in that range then you would have to go with a different manufacturer. I have a lot of experience making prescription lenses with both Oakley and other manufacturers. I have done quite a few prescriptions that are out of range for Oakley True Digital. Let me know if you have any other questions.