7-year-old boy myopia increased 200 degrees a year is more serious, need to be corrected in time. The increase of myopia by 200 degrees in a year for a 7-year-old boy may bring symptoms such as unclear vision and easy eye fatigue, which will affect the child’s daily study and life. The increase of myopia of 7-year-old boy by 200 degrees in a year is mostly related to poor daily eye habits and lack of timely correction. Parents found that the child myopia, should promptly take the child to do dilated optometry and other checks, clear myopia, wear the right number of glasses for vision correction, to avoid further deepening of myopia, and at the same time to let the child develop good eye habits. Parents are advised to take their children to the ophthalmology department of a regular hospital in a timely manner, complete the relevant examinations, and follow the doctor’s instructions for treatment.