Strabismus refers to the inability of both eyes to focus on a target at the same time, only one eye can focus on the target, while the other eye is biased to the other side of the target. Strabismus has the following hazards: 1. Strabismus patients may look different from normal people, so they are often nicknamed by other people, which will cast a shadow on their psychology, and then they may form withdrawn, inferiority complex and other abnormal psychology. 2. 2. Strabismus can cause “strabismic amblyopia”, resulting in low visual acuity. Even though they are lucky not to have amblyopia, their vision is far less wide than normal people’s due to the fact that they only use one eye when they look at things; moreover, people with strabismus generally do not have binocular fusion and stereoscopic vision, which restricts them from working in a lot of professional fields, such as driving, drafting and other posts that require higher eye care. 3, strabismus patients will have an uncomfortable feeling when looking at things, so they will often use the head, side face and other methods to relieve, that is, compensatory head position. If not timely and early treatment, to lead to crural scoliosis and other skeletal problems. If children and adolescents do not seek medical treatment in time, it will also make the development of facial bones deformed. Therefore, strabismus should be detected and treated in a timely manner. Careful observation of the “object”, if you look at the object, there is a deviation of the head, the side of the face, or even the body crest bending or cause obviously not open situation occurs, you can suspect that there is a strabismus.