Four months baby sight distance is about 80cm or so, each baby’s development speed is different, sight distance will have some deviation.
Four-month-old baby vision has developed rapidly, gradually appeared the sense of distance as well as three-dimensional sense, will track will gaze, the visual distance seen is about 80cm, if it is a preterm baby may be slower development, visual acuity may not have reached 80cm.
Four months when the baby’s eyesight is more sensitive to brightly colored items, such as red, blue, yellow, these bright colors, parents can use more of these brightly colored items within the baby’s eyesight to amuse the baby, exercise the baby’s ability to track items.