Dolphin.dyl Polarized Polaroid Glasses Clip-on Sunglasses Lenses for Short-sighted People Driving Fishing Outdoor Sport Travelling Very useful product for short-sighted people,improve their vision, reduce glare, and sharpen your eye sight,especially for short-sighted drivers Good for Short-sighted People Driving Fishing Outdoor Sport Travelling UV400 Lens Technology ,absorbing over 99%of harmful UVA&UVB spectrums Easy to use,and compatible with mostly short-sighted glasses High Quality metal frameclear hinge/bridge design inconspicuous than other similar items,and comes with useful protective case