Discuss whether patients with 20 degrees of exotropia require surgical treatment, and the effectiveness of non-surgical correction methods.

How can a 3 to 4-year-old child with an unknown cause of deafness (cataracts) in the left eye and exotropia regain their sight and correct their strabismus?

My child is 3 years and 3 months old. When they were young, they would stare at the wall lamp, and now there is a suspicion of strabismus, especially in close-up photos. Strabismus may be caused by refractive anomalies, such as high degrees of myopia, leading to abnormal accommodative status. Early corrective glasses should be worn for treatment. If diagnosed as a myopic strabismus, surgical treatment may be required. The best timing for surgery should be determined under the guidance of a doctor to prevent delayed treatment from affecting visual function. Preventing myopia is also important.