A 10-year-old child with 250 degrees of myopia wearing keratoplasty lenses has some benefit in controlling the progression of myopia, but eye hygiene needs to be taken care of, otherwise it can lead to complications such as keratitis. When a 10-year-old child is determined to be 250 degrees myopic after an optometry examination, he or she is considered to have mild myopia. Children can wear keratoplasty lenses to correct myopia and improve vision, as well as to control the increase in myopia. However, during the process of wearing keratoplasty lenses, children are susceptible to infectious keratitis due to poor eye hygiene, which can seriously damage their vision. Children who wear keratoplasty lenses need to pay attention to cleaning the lenses regularly to prevent infection. When wearing keratoplasty lenses, gentle handling is required, otherwise children may suffer from corneal epithelial damage. Children with myopia are advised to consult a doctor for evaluation of their condition and to follow the doctor’s instructions to choose the appropriate treatment.