A 4.7 visual acuity in a 7-year-old child does not necessarily increase. Whether or not a child’s visual acuity grows is closely related to factors such as eye habits, eye posture and eye diseases, and requires comprehensive judgment. A visual acuity of 4.7 in a 7-year-old child indicates the presence of mild vision loss, which may be caused by refractive error or other diseases of the eye. Whether the child’s vision continues to grow depends on whether the eye habits are good, the eye posture is correct, whether glasses are worn to correct it, and whether eye diseases are actively treated. If the vision loss is caused by refractive error and there is no other eye disease, the child needs to develop good eye habits, and if glasses are worn in time to correct the refractive error, the vision can be improved. If it is caused by amblyopia, the child’s vision can be improved with active treatment. However, if the vision loss is caused by irreversible damage to the fundus, it is generally more difficult to recover. It is recommended that children with vision loss consult a doctor to evaluate their condition and follow the doctor’s instructions for treatment.