Strabismus is generally divided into internal strabismus, external strabismus and up-and-down strabismus, but the most common is internal strabismus and external strabismus, external strabismus is commonly known as “oblique white eyes”, while internal strabismus is commonly known as “opposite eyes”, commonly known as ” The strabismus in children is mostly internal strabismus. The causes of strabismus are either congenital or acquired. For internal strabismus that occurs within 6 months of birth, we call it congenital internal strabismus, and for internal strabismus that occurs after 6 months of age, we call it acquired internal strabismus. For congenital internal strabismus, the cause is still unknown and there is no way to prevent it, but for those with acquired internal strabismus, many are caused by improper parenting methods. Parents should pay attention to this from the daily raising, and can be prevented from the following aspects: baby sleep position often change: because infants and toddlers lie in bed for a long time, the crib is usually against the wall, adults often in the same direction when feeding or talking with the baby, the baby will be habitual old gaze in the same direction, so it is easy to form exotropia. Therefore, we recommend changing the baby’s sleeping position, today the head sleeps on the left, tomorrow the head sleeps on the right, every other day, so that the direction of light projection often changes, so that the baby’s eyes are no longer often only to one side. In addition, the light in the bedroom should not be too bright, and the lights should be turned off at night to sleep. Toy hanging to science: many parents in order to amuse the baby, often hanging around the crib full of flowers and green toys, in order to cultivate the baby’s aesthetic and color cognitive ability, but the toy hanging must be scientific, because the baby in the first few months of life, the regulation of eye activity of some muscles are not yet perfect development, the common coordinated movement of both eyes is poor, if the baby stares in one direction for a long time, or because the toy Hanging closer, so that the child often look at the two eyes near the object, to maintain the state of convergence, it is easy to form a “pair of eyes” “cross-eyed” (internal strabismus). Therefore, we recommend that if you want to set up toys, objects, must be 1.5 meters away from the bed, and should be hung in more than one direction, there should be a certain distance between the two objects, so that children take turns looking at toys or objects, to promote the baby’s eyes constantly turn, to prevent the “right eye”. Similarly, for those older children, when watching television, in addition to pay attention to maintain a certain distance, can not let children sit in the same position every time, especially the position of the oblique to the TV. Should always exchange seats left and right, otherwise the child in order to watch TV, the eyes always look in one direction, the head will also be habitually crooked to the side. Over time, it will cause strabismus. Let the baby turn his eyes more: the time to put the baby in the crib should not be too long, parents should pick up the child from time to time, walk around, more outdoor activities, so that the child is curious about the things around, so as to increase the rotation of the eyeballs, enhance the coordination of eye muscles and nerves, to avoid strabismus, more parent-child communication with the child, and at the same time, it is also very helpful to the intellectual development of the baby’s brain. Do not block the small eye: Since infancy is a critical period for pediatric visual development, if one eye is blocked, even for just a few days, it may cause permanent visual abnormalities in the visual development of the blocked eye, resulting in strabismus in the child. Avoid eye damage: Infancy is a critical period for visual development, and if the eye is damaged at this time, it can seriously affect the development of the child’s vision, resulting in low vision and strabismus. In addition, because the transient reflex of small infants is not yet sound, special attention should be paid to prevent foreign bodies in the eyes at this time. If you go out on a windy day, you should cover your baby’s face with gauze; when you sweep the bed, you should hold your child away so that the wind and sand or the small burrs on the broom or the cool mat do not enter the eye. Since small babies spend most of their time sleeping, it is difficult to detect foreign bodies in the eyes. If there is a secondary corneal infection, or even a corneal ulcer, which affects the child’s vision, it may also cause the child to develop strabismus. Therefore, if you find your baby crying for unknown reasons, red eyes, tearing and photophobia, you should go to the hospital in time. Strabismus should be treated early: many parents have a wrong view that strabismus only affects the child’s appearance and will naturally get better when he grows up, which is actually wrong. Once parents find that their children suffer from strabismus, they should be treated as early as possible because many strabismus is likely to be a manifestation of some congenital eye diseases, such as congenital cataract, retinoblastoma, retinal congenital diseases, etc. Often, the first thing that children find is an internal or external strabismus, and these diseases should be treated as early as possible, especially retinoblastoma, which is the most common malignant tumor in children. Retinoblastoma, in particular, is the most common malignant tumor in children and may threaten the child’s life if not treated in a timely manner to avoid lifelong regrets for the child. In general, the development of human vision starts from 3 months after birth and lasts until about 8 years old, of which the period before 2 years old is the critical period for the child’s vision development. If treated in time, it can help your child correct his eye position, improve his vision and provide him with good developmental conditions. Conversely, if the best treatment period is missed, amblyopia will result and the child’s normal visual function will not be fully restored. In addition, there are many little babies who look like they are “right-eyed”, but after examination they are not. In fact, the main reason is that this kind of baby usually has a wide distance between the eyes because of the inner canthus, so it is difficult to see the white eye near the inner corner of the eye, which gives the impression of internal strabismus. When the baby’s eyeballs turn to the left and right, the inwardly turned eye appears more obvious. Therefore, it often appears that the black eye is tilted to the inside, which we call “pseudo-internal obliquity”, and since it is called pseudo-internal obliquity, it certainly does not need to be treated. There is a simple way to determine if a child has a pseudo-internal strabismus, specifically by preparing a flashlight, having the child lie on his or her back in a dark place, and then shining a small flashlight on both eyes at a distance of about 50 cm from the child’s eyes. If the light falls in the center of the child’s pupil at the same time, the child does not have strabismus, or pseudo-strabismus; if the light falls in the center of the pupil and the other falls in the inner or outer pupil, the child has strabismus, and should go to the hospital as soon as possible for diagnosis and treatment.