Children with transient disorder are also known as pediatric transient disorder, abnormal transient disorder in children, or transient syndrome in children with combined organic eye disease or neurological disorders. Normal transients are a neurological reflex of the eye, with the number of transients generally ranging from 10 to 15 per minute, which, in addition to having a protective function, helps the brain to instantly remember information. In children, polyphthalmia is an abnormal condition in which the number of blinks is more than 15 times per minute, up to 30 times per minute, and there is even brief eye closure. The age of onset is usually between 2 and 12 years old, mostly in boys. The main symptoms: itchy eyes, dry eyes, eye pain, inability to read for a long time or serially, heavy shadows on TV, eye fatigue, and photophobia. The causes of pediatric polytransient disorder are: (1) environmental pollution: this group of children all live in coal mining areas, the air has coal dust, chemical substances and other eye irritation, eye discomfort, the children’s preference to rub the eyes caused by direct stimulation. (2) Allergy: nasal itching, eye itching sneezing and other symptoms, when children are more likely to rub their eyes with their hands, resulting in contact allergic inflammation. (3) malnutrition: good living and eating habits, such as eating without certain regularity, partiality, preference for snacks, poor appetite and wasting, children with bad habits of partiality and love of cold drinks, most of them have poor spleen and stomach function and poor constitution. Those who sleep too little are prone to frequent transient eye movements. Therefore, we should pay attention to eye hygiene and ensure sufficient sleep. (4) Refractive error: refractive error, strabismus, amblyopia, children with adjustment disorders are also prone to frequent transients. The cause of visual fatigue in patients with mild refractive error may be due to a series of comprehensive reactions formed by excessive efforts of their visual organs to compensate for refractive error, while patients with larger refractive error with significant visual impairment do not cause typical symptoms of visual fatigue because their visual acuity is significantly reduced and they have given up their subjective efforts to attempt to change their functional defects. When the defects in refraction and eye muscles are small and the patient is able to make greater or lesser adjustments or corrections by means of subjective efforts, the eye does its best to overcome such defects in an unconscious state, and this involuntary continuous tension is most likely to cause visual fatigue, resulting in an increased number of transients. (5) Video terminal syndrome: The performance of children is more obvious than that of adults, and frequent transients are the main manifestation. The study also found that the frequent transient eyes are related to the long time of watching TV, because of the rapid change of TV image and the flicker of the screen, coupled with the incomplete development of children’s vision, the long time of watching TV causes the hyperexcitation of the balance inhibition of the visual senior center, causing a reflexive defense action. In addition, prolonged close exposure to the fluorescent screen, flickering screen images and the dark environment of the room form a strong contrast, increasing the burden of eye regulation, easily causing visual fatigue, resulting in an increase in the number of transient eyes. The main symptoms are frequent blinking, dry eyes, itchy eyes, burning foreign body sensation, blurred vision, decreased visual acuity, eye swelling, orbital pain, etc. (6) Others: Eyelid entropion, impingement, conjunctival calculi, blepharospasm, mydriasis, chalazion, blepharitis, superficial punctate keratitis, etc. can also cause transient eyes. Frequent transient eyes in children not only bring about many facial expression abnormalities and affect their appearance, but also cause habitual blinking for a long time, which affects learning and life.