Fastener, eyeglass accessory and combination formula glasses that glasses were used

The utility model discloses a fastener, eyeglass accessory and combination formula glasses that glasses were used, the fastener includes front side location portion, the rear side location portion that is connected, is formed with between front side location portion and the rear side location portion to be used for the buckle groove of lock on glasses, in the protruding connecting portion that areused for connecting the lens that are equipped with of the trailing flank of front side location portion, by this, buckled package assembly design through installing the lens glasses and another glasses on the fastener has realized the simple and easy combination between the different function lenses, has simplified manufacturing process, and the people of being convenient for simply change different function lenses, and, through the design of fastener, make it improve the suitability greatly with the function of the simple and easy adaptation of the lens that has special function on ordinaryglasses, be applicable to