Auxiliary lens for double-tier eyeglasses

摘要

Universal auxiliary lens to be used with a bottom glasses are provided. The auxiliary lens consists of a pair of preventive lenses having a bridge and clips interposed therebetween. The protective lens pairs are fixed to the two ends of the bridge with two or more fasteners; the clips are affixed to the bridge and inserted behind the bridge of the bottom glasses of the double-tier eyeglasses to hold the auxiliary lens in place while the end of each clip is a grappling claw which is in the shape of a hook.