Children aged 5 with visual acuity of 4.7 and 4.6 will need to go to an ophthalmologist for a detailed examination. If the results of the optometry examination show that there is a refractive error, the child will need to wear eyeglasses. The naked eye vision of a 5-year-old child is usually above 4.8. With age, the eyes develop gradually and the vision will be perfected. Parents should guide their children to protect their vision, avoid excessive eye use and maintain eye hygiene. If a 5-year-old child has a visual acuity of 4.6 or 4.7, after dilated optometry, if the results show that the child suffers from myopia, astigmatism, etc., he or she needs to wear glasses to correct the problem. If the child’s vision loss is caused by cataracts, glaucoma and other eye diseases, wearing eyeglasses will not improve vision and glasses are not necessary. It is recommended that children with vision loss seek medical attention to evaluate their condition and follow the doctor’s instructions for treatment.