The listing are progressive lenses.The lens is like using a video camera to camera、 a pair of glasses can see in the distance、 and can see near、 also can see in middle distance.

 

1913449577_16017317471915932475_16017317471915941671_16017317471915944013_16017317471915944032_16017317471915959057_16017317471915959255_16017317471915959302_16017317471915959354_16017317471915959420_16017317471915959465_16017317471913449540_16017317471913111156_16017317471913111159_16017317471913111160_1601731747