The normal range of visual acuity for a 5-year-old child should be 0.6 or above in decimals, and if the visual acuity is below this range, you need to be alert to myopia and other diseases; you need to pay attention to eye hygiene and habits during the development of the eyes. At the age of 5, the normal range of visual acuity should be above 0.6 or 4.8. Their vision is lower than that of normal adults mainly because they are not fully developed yet. Children with normal vision need to pay attention to their eye habits and hygiene. When studying, children should pay attention to proper sitting posture, read and write under bright and soft light, avoid reading for a long time, take regular breaks, and reduce the contact time of electronic devices such as cell phones. However, it should be noted that if the visual acuity is lower than 0.6, it is recommended to go to the hospital for an eye examination in a timely manner to clarify whether there is amblyopia or myopia, and to intervene in a timely manner. If there is any discomfort such as blurred vision, it is necessary to consult a doctor in time.