After strabismus surgery, if the eye alignment is still incorrect, reoperation should be considered only after six months. Additionally, one should consider the uncorrected visual acuity, corrected visual acuity, eye movement, and the condition of the eye muscles to determine whether the issue is due to refractive errors or eye muscle paralysis. Reoperation must be approached with caution. The primary cause of strabismus is an issue with the eye muscles, and this can lead to various eye diseases. Therefore, it is crucial to conduct thorough ophthalmological examinations and pay attention to the eye movement and the condition of the binocular vision system.