Child myopia belongs to refractive error, the characteristic with adult myopia differs somewhat. Thus kid glasses commonly contains eyesight adjustment function , which can conduce to alleviate myopic symptom.
I think while choosing kid glasses, there are so many requirements, because children are under development period, so the material, lenses, weight of the glasses are all should be taken into consideration.
Kid’s bridge of nose is in development phase, which is more flimsy, so light-weight glasses should be first choice. At the same time, the quality of lenses must be high, but adult glasses do not have too many requirements.