Myopia of 200 degrees in a 12-year-old child is not serious, but it should be taken seriously to avoid developing high myopia.
Myopia is a common ophthalmologic condition, a type of refractive error that occurs in children and adolescents. Myopia of less than 300 degrees is considered mild myopia, between 300 degrees and 600 degrees is considered moderate myopia, and myopia of more than 600 degrees is considered high myopia. 200 degrees of myopia in a 12 year old is considered mild myopia, and is not very serious.
However, the child should pay attention to develop good eye habits, such as reducing the time of close-distance eye use, doing more outdoor sports, and not using the eyes in shaky or dim environment, to avoid further increase of myopia, which will develop into high myopia.
Children with myopia are advised to seek timely medical consultation to assess their condition and undergo treatment under the guidance of a doctor.