I suggest you take plastic glasses to the hospital for a more careful and comprehensive examination. Patients wear glasses for 8- 10 hours every day, and their eyes are in a state of no myopia or myopia relief at other times. The naked eye has a clear field of vision and does not need to wear any glasses. If the user wears glasses at night and is not nearsighted during the day, the inconvenience of wearing glasses can be avoided; For adolescent patients, it can effectively curb the rapid deepening of myopia. Plastic lenses are generally used 1.5 years. It is recommended to change the lenses. If you wear it until 16 years old, the degree will generally increase slowly.