Glass lenses are easy to break, and teenagers love sports, causing eye trauma cases are common. In view of this fatal shortcoming of glass lenses, in order to protect the eyes of adolescents, European and American countries stipulate that adolescents must use safe eyeglass lenses – resin lenses. The quality of glasses should be noted after prescription: first, the refractive error must be within the standard range; second, the distance between the optical center of the lenses and the pupil distance of both eyes is the same, not a high and a low, the frame and lens assembly should match; third, the density of the lenses should be uniform and consistent, the surface of the lenses should not have vapor bubbles, pockmarks and decoloration phenomenon. The nosepiece and legs of the eyeglass frame must be readjusted according to the individual face shape. Do not use glasses that are not qualified, and those that are being used should be exchanged in time. The correct choice of glasses should be considered from the optical, aesthetic and mechanical aspects of the lenses. Choose the frame to pay attention to the beam of the frame and the nose type, mirror legs and ear type of the match, the weight of the whole glasses evenly distributed in the nose and ears, not too tight, and not too loose, let alone a high and a low, so that the frame fixed to maintain in the correct position, so that the wearer has a sense of comfort.