At what day can a newborn baby see?

The baby is 4 days old and sleeps most of the time, but sometimes opens his eyes. So how many days does it take for a newborn to see things?

How many days can you see things?

When babies are just born, they will react to light. Their visual field is only about 45 degrees, and their vision is only 1/30 of that of adults. And they can only track people or objects 18 to 38 centimeters in front of them horizontally. Newborns prefer to look at more complex shapes and curves, as well as bright contrasting colors. After a full month, the baby has the ability to look and fixate with both eyes, and will look at the person holding him, but it cannot last too long, and the eyeballs are prone to lose coordination. After three months, the baby's visual field can reach 180 degrees, and he can also see his own hands and feel the existence of "himself". The retina of babies aged 4 to 6 months has developed well, and they can see from near to far, and then from far to near. At 4 months, they begin to develop a sense of three-dimensionality. During this period, babies will use their sight to find the source of sound or track moving objects. The vision at this time is about 0.1. After 6 months, both eyes can focus. At 8 months old, the baby's vision remains between 0.1 and 0.2. The vision development standard for children aged 1 to 3 years can reach about 0.1 to 0.6. Generally, the value is 0.4 at the age of 2, and the child can already judge the distance of objects, and can follow fast-moving objects and see them clearly. At the age of 3, the value is 0.6, and the child has a sharper vision, likes to observe, and can use the eyes to guide the hands to touch new things. The eye-hand coordination is more flexible, and the establishment of stereoscopic vision is almost complete.

Newborn's field of vision

Newborn babies usually squint their eyes because they have been in their mother's belly for a long time, just like coming from a dark room to a bright room. In addition, childbirth will squeeze and swell the baby's eyelids, so the world in the eyes of newborns is blurry in the first few hours. The pupils of newborns are also relatively small in the first 1-2 weeks after birth, which further blocks the light and blurs the baby's vision. However, most newborns will open their eyes a few minutes to an hour after birth and observe the world with curiosity. But his field of vision is not far, and he can see things 20-25 cm clearly. This distance happens to be the distance between mother and baby when feeding, and it is also the best distance for eye contact. So if you want to become closer to your baby, it is best to hold the baby up and face to face. He will be willing to make eye contact with you, but remember that it is not good to be too close or too far from this intimate distance. Whether it is too close or too far, the things in the baby's sight will become blurry, and he will lose interest in it and stop making eye contact with you.

What do newborns like to watch?

Studies have found that newborn babies like to look at faces, especially familiar faces. Studies have also found that babies are interested in faces with well-proportioned features, and are not interested in distorted faces. Babies prefer their father's face to their mother's face because they prefer light and dark contrasts, and male faces are more attractive to them, especially those with beards. Newborns like to look at their parents' faces the most, followed by black and white photos or pictures of faces, and then black and white chess pieces, stripes or bull's eyes.