Children with strabismus often have the performance of seeing things with double vision, fear of light, tears, etc. Some children like to close one eye in the sun to see things; some children often say “see two mothers” this phenomenon; in addition, patients with strabismus are also prone to eye redness, easy fatigue and other symptoms; if the patient is vertical strabismus, may tilt the head to see things. In addition, patients with vertical strabismus may have symptoms such as red eyes and easy fatigue. However, each patient has a different type of strabismus and degree of strabismus. In patients with constant strabismus, the eye position can be seen at first glance; while some patients have intermittent strabismus, where the eye is not always skewed, and only shows up when they are visually fatigued or tired and inattentive, so it is not easy to be detected. So how to detect strabismus in children at an early stage? In fact, parents should pay attention to the child’s performance in life, such as children are often afraid of light, tears, like to close one eye to see things; children study when reading books easily serial, blurred vision; or often tilt the head to watch TV; these performances should be taken seriously. Take your child to the hospital for examination as soon as possible to avoid missing the best time for treatment.