Amazon.com: Multi 3 Focus Progressive Sun Reader Sunglasses 。New Sunglasses Readers 3 Strength Aspheric Lenses Rimmed in Black frames Lightweight Temple length 5 1/2” Temple size-the arm of the sunglasses Bridge width 3/4” Bridge size-the area that connects the lenses Lens width 1 3/4” Eye size-width of the lenses at the widest point Aspheric lenses depart slightly from spherical form to correct for aberration Aspherical lenses-smoother and flatter than conventional lenses This reduces the distortion that can occur when someone wears glasses They still offer the same vision-enhancing benefits They have a more attractive profile-there is less curvature They don’t have the same “Coke bottle” look you get with traditional lenses Aspheric lenses have a complex front surface with a gradual curve Conventional lenses have a spherical design & create unwanted magnification The eyes behind the lenses are also magnified-which can create a “bug-eyed” look with traditional lenses Aspheric lenses correct this problem They look more natural Aspheric lenses are not just about style-it is not the only reason people choose these lenses They offer many benefits -makes images less blurry -improved performance -improved image quality -lightweight and more comfortable -improved peripheral vision Makes your favorite outdoor activity more enjoyable Keeps your vision clear and protects your eyesight while outside We have many sunglasses listed and will be listing many more Always been in our very clean home since purchased new