Most parents think that their children’s “blurred vision” is myopia, and they often get glasses for their children at the nearest opticians. In fact, not all “blurred vision” is myopia and can be solved by prescription glasses. Once the child is nearsighted, it is necessary to match glasses, but the glasses is not a simple word “match”, but also need scientific optometry, in order to get clear and comfortable vision through glasses correction, parents should not be busy because of work, ignore the glasses before the examination, haphazardly give children with eyes, otherwise it will only harm the child. The following issues must be noted before children’s glasses: First, children must do dilated pupil examination before prescription: clinically younger children must be dilated pupil optometry, so as to reflect the true vision of the child’s eyes, not through the dilated pupil optometry, just rely on the results of computer monitoring with glasses, will cause a lot of harm to the child’s eyes. Second, the child must do an eye examination before prescription: there are many causes of vision loss in students, sometimes not necessarily due to myopia and myopic astigmatism, some fundus lesions also manifest as vision loss, therefore, before the optometry should be a systematic eye examination. Third, children’s glasses need medical optometry: children’s glasses also need comprehensive optometry, which requires optometrists or ophthalmologists with profound medical and optometric knowledge, rich experience in optometry, and with a variety of professional medical equipment for a series of scientific eye and refractive examinations, to arrive at the correct diagnosis, the glasses can not only meet the requirements of clear vision, but also consider whether it will increase the burden on the eyes. Fourth, there is no need for children to wear contact lenses: some parents believe that once the child wears frame glasses, the child’s eyeballs will protrude, affecting the beauty of the child’s eyes, so the child wears contact lenses, experts believe that there is absolutely no need for students to choose to wear contact lenses, because the safety of contact lenses in the use of higher requirements, some unscientific use of the method will bring serious damage to the cornea. Children need to be cautious with their lenses and must go to a regular eye hospital.