In the early stage, the main materials of the frame were metal and tortoiseshell, including stainless steel, titanium metal, platinum, plastic, Monel, nickel alloy and other materials. The mirror frame made of titanium metal is lighter and more corrosion resistant, which can avoid losing luster due to the corrosion of sweat on the metal during long-term wear.

From the function of lens, it has the function of adjusting the amount of light entering the eyes, correcting vision, protecting eye safety and clinical treatment of eye diseases. Children's strabismus caused by abnormal refraction and patients with abnormal refraction accompanied by headache can be treated after wearing glasses. The function of the glasses frame is not only to form glasses for matching lenses, but also to provide beauty and decoration. Modern fashion advocates emphasize that glasses should be in harmony with the facial makeup and clothing of the people of the times, reflecting the high social class, high learning, fashion and other symbols.

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