Whether presbyopia glasses are crystal or resin is good, can not be generalized, patients should be based on their own needs, reasonable prescription. 1. Crystal eyeglasses: have the advantages of good light transmission, high refractive index and high clarity. In addition, crystal eyeglasses also have high wear resistance and are not prone to scratches. However, their hardness is high, not easy to polish, and also easier to break. 2. Resin eyeglasses: they are lightweight, cheap, not easy to break, and have the advantage of high transmittance. Resin eyeglasses can also be coated, with anti-blue light, anti-ultraviolet and other functions. However, resin eyeglasses are not resistant to high temperature, easy to yellow, and less effective in preventing scratches. Patients should choose according to their needs and under the guidance of their doctors.