Children's myopia has become a common problem in society. Most parents will let their children wear the myopic eyeglasses online, In fact, teenages are still in the process of growth. their eyes could also keep on growing, It will affect the growth to wear this kind of eyeglass frames. the impact of wearing myopic glasses may turn to be negative: increasing their myopic strength.

Progressive lens can deal with this problem, Because the progressive glasses have three different strengths, namely far, middle and short distance. While common lenses only have one diopter. Children need different degrees when looking at objects at different distance. Children with common lenses or eyeglasses must adjust their eyes to different distances by themselves. Progressive lens can help children adjust with its three diopters. Thus it can control the speed of the development of shortsightedness of children.