Upward slanting of the eyes is usually a manifestation of vertical strabismus, which is also a relatively common type of strabismus, and for which surgical correction is required. Therefore, if this disease exists, it is recommended to improve strabismus-related examinations as soon as possible, including visual acuity examination, optometry examination, eye position examination, eye movement examination, and synoptic machine examination. Through these examinations, an accurate judgment of the condition can be made. If the indication for surgery is present, surgical correction can be considered, which is a very routine procedure in ophthalmology. The principle of surgery means that the eye position is adjusted by changing the starting and ending points of the extraocular muscles. This will improve the appearance on the one hand and prevent the strabismus from affecting the development of stereo visual function in both eyes, especially in children or adolescents, and must be treated as early as possible.