What is the best lens for a high minus prescription (-9.5 0.50 124 / -11.0 2.00 090)? This is for our 17 year old son. He has been in glasses since 9 months. He hasnt need a new prescription for several years now and his last lenses were trivex. We are looking for a balance of safety, best optics, thinness, transitions are a plus. Any recommendations would be welcome.