Glasses worn by children mainly have a therapeutic effect on the eyes

The appropriate size of the frame directly affects the improvement of children's vision and visual development.
According to the lively and active characteristics of children, frames are often made of plastic or organic glass. This type of frame has a wide edge groove, and the lens is firmly installed with a soft texture. It is comfortable for children to wear and not easily damaged, with less occurrence of indirect eye injuries in children. And the price is cheap, making it a popular mirror frame among the public.
The size of the frame should be appropriate. Some parents and children think that a larger frame looks better, while others think that a smaller frame is less likely to fall off. These are not comprehensive. Because the position of the pupils in both eyes of children is directly facing the center of the eyeglass lens (optical center), and the lens and the surface of the eyeball are kept at a position of 12mm to achieve good correction and treatment effects. If the frame is too large and the eyes are far from the optical center, leaning towards the inner side of the glasses, the prism effect may occur, causing visual fatigue symptoms such as blurred vision, decreased vision, eye swelling, soreness, headache, etc., exacerbating the development of refractive errors. If the frame is too small, both eyes will lean towards the outer side, also far away from the optical center of the lens. Over time, due to the tight pressure of the temple on both sides of the eye, the temporal side will also affect the normal development of the face. Therefore, children's frames should be selected according to the development of the child's head, face, and eye sockets, and replaced in a timely manner as they continue to develop.
Although contact lenses and maintenance fluids have been continuously introduced, the number of people who have problems wearing contact lenses has not decreased. Data analysis shows that from 1992 to 2006, up to 45% of patients with bacterial corneal ulcers had problems with contact lens maintenance, of which 80% were infected with Pseudomonas aeruginosa.