One type of glasses for myopia treatment is frame glasses; the other is keratoconus. Ordinary frame glasses are easy and practical, most people choose to wear frame glasses, the material mainly has two kinds of glass and resin. Glass lenses have a high refractive index and good wear resistance, but they are easy to break; resin lenses are not easy to break, lightweight and UV resistant, but easy to wear. The soft lenses are easy to fit and comfortable to wear; the hard lenses mainly refer to hard high oxygen permeable corneal contact lenses, also known as RGP, which are more complicated to fit, but the imaging quality is better and can be used to correct astigmatism.