Bobbie MR-series HD defocus lenses merge high-definition aspheric optics with peripheral defocus technology to help slow myopia progression while keeping every letter and pixel tack-sharp. The ultra-light Mitsui polythiourethane body keeps even strong prescriptions whisper-thin, and the UV400 HMC armour blocks glare, scratches and daily smudges for crystal-clear comfort from classroom to playground.