Core tip: Children’s strabismus is one of the villains that threaten children’s eye health. Most strabismus starts in preschool infancy and affects not only the normal development of children’s eyes, but also their outward appearance. So, why are children especially prone to strabismus? Strabismus is one of the main threats to children’s eye health. Most strabismus begins in preschool and early childhood, affecting not only the normal development of the child’s eyes, but also the child’s outward appearance. So, why are children especially prone to strabismus? Young children’s eyes are small and highly farsighted, so they have strong accommodation. When looking at near objects, they rely on the coordination of the regulation force, and both eyeballs move inward, which is called convergence. If both eyes stare at near objects for a long time, both eyes are bound to produce strong convergence, and over time, the inward-turning muscles of the eyes will become especially developed, while the outward-turning muscles will become relatively weak, resulting in strabismus. What are the dangers of strabismus? Even if the visual acuity of the strabismic eye is normal, they can only use one eye to look at things, so their visual field is not as open as normal people. Second, from the appearance point of view, because strabismus affects the beauty of children’s appearance, children with strabismus are often nicknamed, which overshadows the psychological development of children, thus causing their isolation, low self-esteem and perverse psychology. Third, there are also some patients with paralytic strabismus, due to eye muscle paralysis, often use some special head position such as deviated head, side face to overcome the discomfort when seeing things, medically known as “compensatory head position”. If not corrected early, it may lead to deformities of the whole body skeleton development, such as scoliosis of the crest. The prevention of “TV strabismus” is simple, that is, babies stay away from TV and young children watch less TV, but the key is to pay attention to adults, especially parents, if they notice that their children have strabismus, they should go to the hospital early. Surgical treatment for strabismus is best done before the age of 6. If surgery is performed after this critical period, it will only serve the purpose of cosmetic surgery and will not correct the vision of the strabismic patient. Why does watching TV cause strabismus? When adults watch TV, or hold the child, or put the baby together with the cradle, infants tend to gaze sideways at the TV when they are attracted by the sound and image of the TV. Sometimes he will look at the TV for as long as the adults are watching, and often in the same position. Over time, this will naturally cause strabismus. There is also a situation where a young child has to use the inner eye muscles to over-adjust or use an abnormal head position to shorten the distance between the two focal lines of the cornea in order to increase the clarity of vision due to watching TV for too long and visual fatigue, which can also result in strabismus. Here to remind parents, usually pay attention to when the child appears crooked head side view and low head up view and other abnormal visual posture, often indicates that the child has vision loss or even strabismus, if the child appears strabismus situation must be as soon as possible to take the child to the hospital for examination and treatment, do not delay the best time for treatment.