3 years old high hyperopia wearing glasses partly can be good, partly can not be good, different individual treatment effect will vary, but all need to actively go to the hospital for consultation and treatment, so as to avoid causing amblyopia and other adverse consequences. High hyperopia that occurs in 3-year-old children is beyond the scope of normal hyperopia reserve, in order to prevent high refractive error resulting in amblyopia and other adverse consequences, it is necessary to go to the ophthalmology outpatient clinic in a timely manner, according to the different conditions of the patient, choose to wear glasses to correct the visual training and other treatment methods, and may be able to achieve certain therapeutic effects. The normal condition of both eyes from birth to preschool is in the process of development from hyperopia to orthopia, usually referred to as a certain range of distance during this period of time is considered to be the reserve of hyperopia, the normal reserve of hyperopia degree of hyperopia does not need to intervene. 3 years old children’s normal reserve of hyperopia is about 300 degrees, high hyperopia should be actively seeking medical treatment to correct. It is recommended to go to ophthalmology clinic in time to identify the cause of hyperopia and follow up with the doctor for treatment.