A 6-year-old child’s visual acuity of 4.9 on a 5-point visual acuity record may be normal, and it is recommended that the child undergoes regular visual acuity testing while paying attention to his/her eye habits. Normal visual acuity for a 6 year old child should be 1.0 and above, which translates to 5.0 or above on the 5-point scale. 6 year old children with a visual acuity of 4.9 on the 5-point scale, which is slightly below 5.0, can meet the normal needs of children, which may be due to slower development, and is not necessarily abnormal. If both eyes are 4.9 when the child goes to a specialized medical institution, clinical observation can be made for the time being, and the measurement can be made after an interval of six months. In the meantime, children should pay attention to eye hygiene and habits, and avoid prolonged reading or use of electronic devices. Children with abnormal vision are advised to consult a doctor for evaluation of their condition and treatment as prescribed by the doctor.