Strabismic amblyopia is caused when the visual axis of both eyes is parallel and the central macular sulcus of both eyes is maintained in order to produce monovision in both eyes. Both diplopia and confusion cause extreme discomfort to the patient, and the visual center then actively inhibits the visual impulse input from the macula of the strabismic eye, which will lead to amblyopia in the long term, called strabismic amblyopia. Strabismic amblyopia is a group of visual impairment syndrome caused by abnormal visual experience during the sensitive period of visual development with impairment of spatial visual acuity (central vision, spatial orientation ability, contrast sensitivity). According to statistics, 40% to 60% of children develop amblyopia due to untimely treatment of strabismus and refractive error. The following are the obvious symptoms of strabismus: 1. photophobia. 2. 2. Patients report that they cannot see clearly and squint at things. 3.See things too close to each other. 4. One eye is occasionally or frequently deflected inward or outward. 5.Every time you need to use your eyes, such as watching TV, your head will appear to be deflected or tilted in a certain direction, or your chin is depressed or elevated, and other bad postures. 6.The phenomenon of double vision, seeing one thing as two things. 7.When reading, often read the wrong line, or when reading and writing, there will be the opposite or inverted phenomenon. 8.Poor eye-hand coordination, and easy to collide or fall down. 9. Abnormal eye appearance. For example, drooping eyelids, white spots in the black eye, different sizes of the two eyes, and different sizes or shapes of the pupils. 10. Abnormal eye activity. If there is strange jumping, this is likely to be a kind of nystagmus, which can easily cause poor vision.