The glasses worn by children have a therapeutic effect on the eyes and also have a certain cosmetic effect. Whether the frame size is appropriate or not is directly related to the improvement of children’s vision and visual development.
According to children’s lively and active characteristics, the frames are mostly made of plastic or plexiglass. This kind of spectacle frame has wide side grooves, the lens is firmly installed, and the quality is soft. It is comfortable for children to wear, and it is not easy to be damaged. Indirect eye injuries to children are less common. And the price is cheap, and it is a popular frame.
The size of the frame should be appropriate. Some parents and children think that the larger frame is good-looking, and some think that the smaller frame is not easy to fall off. These are not comprehensive. Because the position of the pupils of the children’s eyes is directly at the center of the spectacle lens (optical center), and the lens and the surface of the eyeball are kept at a position of 12mm, a good correction and treatment effect can be achieved. If the frame is too large, the eyes are far away from the optical center and toward the inner side of the glasses, and the effect of a triangular prism appears, causing blurred vision, decreased vision, eye swelling and soreness, headaches and other symptoms of asthenopia, and aggravating the development of refractive errors. If the frame is too small, the eyes will be biased to the outside and also far away from the optical center of the lens. Over time, because the temples on both sides tightly press on the inner bones of the eye, the temporal side will also affect the normal development of the face, so the children’s frame should be based on the child’s head , The development of the face, orbit and eyeball, select the appropriate frame, and replace it in time as it continues to grow.