Abstract
The superior oblique muscle has the longest tendon among the six extraocular muscles and serves complex functions. Surgery on the superior oblique muscle is considered the most complicated and difficult procedure in the field of strabismus. This article focuses on the history of superior oblique muscle surgeries, including superior oblique weakening procedure and superior oblique strengthening procedure. We discussed the advantages, disadvantages, and indications of each type of surgery, providing colleagues in the field of ophthalmology with a comprehensive understanding of superior oblique muscle surgery and facilitating the carefully weighed decision to choose and perform the procedure.