The lenses and frames of natural Sally glasses are made of raw materials that are beneficial to human eyes. Glasses frames mainly contain negative ion elements, infrared elements and nano-silver, which can kill bacteria, provide sufficient oxygen for eyes, activate eye cells, and resist oxidation and aging. In addition, it can also strengthen the metabolic function and detoxification function of the eyes. The lens is rich in raw materials that can prevent ultraviolet rays, blue light and electromagnetic waves; Ultraviolet, blue light and electromagnetic wave are the three most harmful substances to human body in electronic products and nature. Blue light directly enters the eyes, damaging the human retina and causing macular degeneration. Electromagnetic waves easily cause dry eyes; Ultraviolet rays enter the eyes from the outside, causing various eye diseases and damaging eye health.