An 8-year-old boy’s eyes grow 200 degrees in a year, which may be due to factors inherited from his parents, insufficient time for outdoor activities, or long-term close use of electronic devices or study, and so on. 8-year-old boy’s eyes grow 200 degrees a year for more reasons, the most likely is the result of a combination of reasons, unhealthy eye bad habits and certain genetic factors can lead to the rapid growth of myopia. If the parents have a high degree of myopia, it is important to pay attention to it, and to take the child for regular checkups to take effective optical medication and life interventions. If the 8-year-old boy’s eyes grow 200 degrees a year, but also consider whether the usual excessive use of cell phones, tablets and other electronic devices, or the usual pressure of learning to have a long time close to the eyes of the habit of limiting the use of close electronic products and reduce the use of incorrect learning posture. It is recommended that myopia at a young age, with or without rapid growth, should be given sufficient attention, regular review, timely intervention and control of progress.