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.

Glasses are made up of lenses and frames, which are used to improve vision, protect eyes or for decorative purposes. Glasses can correct a variety of vision problems, including myopia, hyperopia, astigmatism, presbyopia, strabismus or amblyopia.