Vision 4.7 for a 4 year old is mostly abnormal and vision 4.7 for a 4 year old needs active treatment. Generally speaking, the normal visual acuity of 4-year-old children should be 4.8~4.9, and 4-year-old children’s visual acuity of 4.7 is below the normal range. The presence of low vision in children may be accompanied by myopia, astigmatism, hyperopia, amblyopia and other eye problems, which need to be examined by dilated optometry to understand the causes of low vision in 4-year-old children. The 4-year-old child vision 4.7 need timely corrective treatment, the specific corrective program should be determined in conjunction with the actual situation, such as the 4-year-old child myopia problem, you can give the child to wear the appropriate amount of frame glasses to correct; if the combination of amblyopia, in addition to wearing glasses, the child also need to amblyopia treatment, training, in order to improve the visual acuity. If a 4-year-old child has a visual acuity of 4.7, parents are advised to take the child to the ophthalmology department of a regular hospital in time to improve the examination and clarify the cause, and then follow the doctor’s instructions to deal with the problem.