Now myopia in adolescents and children is increasing year by year, the prevention and treatment of myopia has become an important issue of widespread concern, many parents of children’s optometry and some misconceptions exist. 1, fast and simple optometry: optometry is a rigorous medical, procedural process, choose medical optometry, is the premise of accurate prescription. 2, optometry without eye examinations: note that there are many reasons for poor vision, only systematic eye examinations to clarify the true cause of poor vision, so as not to delay diagnosis and treatment. 3, optometry can not be dilated: young people must be dilated to get accurate optometry, children under 12 years old with strong adjustment also need to use 1% atropine to fully dilate the pupil after accurate optometry. 4, the lower the degree of myopia is better: the principle of prescription for myopic eyes is the lowest degree of best corrected visual acuity, the principle of prescription for hyperopic eyes is the highest degree of best corrected visual acuity, visual acuity to 1.0 is appropriate. 5, the pursuit of binocularity consistent with the prescription: prescription should achieve the corrective effect of both eyes, visual quality consistent, rather than the blind pursuit of binocularity consistent, otherwise it will interfere with the visual balance and development of both eyes. 6, medical optometry and general optometry no difference: medical optometry emphasizes the improvement of visual function of both eyes, wearing corrective glasses not only can have the clearest visual effect, but also to achieve wearing glasses comfortable, the eyes play a health care treatment role. 7, the more you wear glasses, the deeper you wear, put on can’t take off: glasses are not the deeper you wear, but myopia will be higher and higher need more high number of glasses.