Children’s vision development has a process, and we cannot simply evaluate it by the standards of adult vision. When a child is first born, the visual system is not fully developed and will respond to light, but the vision is only 1/30 of that of an adult; within 1 month One week after birth, the baby’s vision tends to be nearsighted and can focus on objects 8 to 15 cm away, and can also follow moving objects with his eyes. After one week, the baby can see objects at 3 m. He will also learn to follow moving objects and will enjoy looking at human faces or high-contrast patterns. at a little over 1 month, the baby can see objects within 15-30 cm of his eyes and can gaze at objects. 2 Months By 2 months of age, infants are becoming more visually focused and enjoy looking at moving objects and familiar adult faces. They are able to look at objects in a coordinated manner, distinguish colors but not shades, move their eyes with objects within a 90 degree range, blink when an object comes close to their eyes quickly, and look at small hands for more than 5 seconds. 3-4 months At 3 months of age, infants are able to fixate on objects, see objects about 75 cm away, and have a visual acuity of about 0.1. The duration of gaze is significantly longer, and the eyesight can follow moving objects. Sensitive to color, infants have a preference for color, preferring to see bright and vivid colors, especially red, and disliking dull colors. Their preferred colors are red, yellow, green, orange, blue, etc., in that order. When lying on their backs, both eyes will track people walking around. Often walk consciously in front of the baby to attract the baby’s attention and observe whether the baby’s eyes will follow. 5-6 months Blinks more often, can see objects accurately in front of him/her, and will grab them and play with them in front of his/her eyes. When the child sits up to play, his hands can manipulate objects under eye control, he will stare at what he gets, and hand-eye coordination begins. Present the toy in front of the baby’s eyes and move it slowly up and down, observing whether the baby can consciously follow it actively. at more than 6 months of age, the eyes can turn 90 degrees up and down following the moving object. At this time, the child’s visual acuity can reach 0.1, and can look at objects at a distance, such as pedestrians and vehicles on the street. 7-8 months Can identify the distance and space of objects; like to look for toys that suddenly disappear; play hide and seek with the baby to observe the baby’s level of excitement and timely response or not. 9-10 months The eyes can move up and down with moving objects, follow falling objects, look for dropped toys, and distinguish the size, shape and speed of movement of objects. Can see small objects, can begin to distinguish simple geometric shapes, and observe different shapes of objects. The sense of depth of vision begins to appear, which is actually a form of stereoscopic perception. 11-12 months Vision can move up and down with moving objects and can follow falling objects; vision can reach 0.2 at the age of 1 year. 1-2 years After the age of 1 year, they like to read books, can distinguish objects, and can imitate actions. Under the continuous stimulation of external environmental light, the child’s vision gradually develops, and by the age of 1.5, his vision can reach 0.4, and he can see tiny things such as crawling bugs and mosquitoes, and can gaze at small toys from 3 meters away. He can also distinguish simple shapes, such as circles, triangles, and squares. 2-5 years old The visual development of both eyes is most vigorous. 2-3 years old, visual acuity reaches about 0.5-0.6, which is close to adult visual acuity, but it is very easy to lose vision at this time. At the age of 4 or 5, the visual acuity is about 1.0, and various eye physiological reflexes have been formed and tend to be stable, so it is not easy to lose vision at this time. Children at this stage can judge the size of objects, up and down, inside and outside, front and back, near and far, and other spatial concepts. At 6 weeks of age, your child’s best vision can be 1.2 (5.1 on the logarithmic visual acuity scale). If you find that your child’s vision is below the normal value for the corresponding growth period, it is important to take your child to the eye clinic as soon as possible.