There are many types of strabismus, and one type is intermittent strabismus, which is manifested by strabismus sometimes during the day and the rest of the day is like normal eyes, which may only be noticed by attentive parents. If a child appears photophobic and likes to squint in the sun, this should alert the child to the presence of intermittent exotropia. A common symptom of intermittent exotropia is photophobia, which disrupts fusion due to light stimulation of the retina, and the patient may be trying to avoid diplopia, or it may affect the fused pooling amplitude, causing the patient to actively close the eyes. If a child appears photophobic and likes to squint in the sun, he or she should be alerted to the presence of intermittent exotropia. A common symptom of intermittent exotropia is photophobia, which is caused by light stimulating the retina and disrupting fusion, and the patient may be trying to avoid diplopia or affecting the fusional gaze, causing the patient to actively close his or her eyes. The prevalence of strabismus in children is 1 to 3 percent, and strabismus is a very common clinical ophthalmic disease, second only to myopia in children, but many parents have limited awareness of this disease and do not realize the dangers of strabismus, missing the best time for treatment and delaying the child’s life. There are many types of strabismus, one is intermittent strabismus, which is sometimes strabismic during the day, and the rest of the day is the same as normal eyes, which may only be noticed by parents who are careful. Intermittent strabismus should be detected and treated early Not all strabismus must be treated surgically, and there is a time for surgery for any disease. From a purely medical point of view, it is important to seek medical help at a specialized hospital to detect the problem, and whether or not to operate depends on the specific case of strabismus. In the case of intermittent exotropia, there is some training that allows the patient to maintain eye function longer and progress slower, but overall, the process of intermittent exotropia is irreversible. Whether strabismus requires surgery depends on two main factors: first, the degree of the child’s eye position deviation (degree of strabismus), the degree of deviation is large and cannot be controlled by conservative methods such as wearing glasses, surgery is needed; second, it is crucial to see whether strabismus has an impact on the child’s binocular vision function, especially on the stereo vision function. If the examination reveals that the binocular vision function has been affected, for example, the fusion function of both eyes has started to be destroyed, surgery should be performed as soon as possible. Because the normal human binocular vision function basically develops and matures before school age, if the child is too old, functional recovery after surgery will be difficult. Most pediatric strabismus is treated surgically, but the timing of surgery varies for different types of strabismus. Some strabismus is better the earlier the surgery is performed, while others require a variety of factors to be considered, and not all strabismus is operated on immediately upon detection. Not all strabismus is detected immediately. In general, the establishment of binocular vision function in normal people begins before school age, and some functions even begin to develop before the age of two or three. In children with congenital internal strabismus or congenital exotropia, strabismus often appears at birth or within 6 months after birth, and the angle of deviation is usually large. For these children, the earlier the surgery is performed, the better the results will be, so that the eye position can be restored as early as possible and the binocular vision, even if it is coarse, can be established, creating conditions for improving the quality of life in the future and increasing the chances of choosing a career.