Anterior transposition compared to graded recession of the inferior oblique muscle for V-pattern strabismus

OBJECTIVE: To compare the efficacy of anterior transposition (AT) and graded recession (GR) in the treatment of V- pattern strabismus caused by overaction of the inferior oblique muscle. METHODS: The charts of surgically treated cases of V-pattern strabismus were analyzed retrospectively and the patients classified as AT or GR. Age, initial horizontal deviation, initial V-pattern and the amount of V-pattern correction were compared between the two groups. RESULTS: There was no significant difference in age (p = 0.066), initial horizontal deviation (p = 0.59), initial V-pattern (p = 0.15) or the amount of V-pattern correction (p = 0.78) between the two groups. CONCLUSION: AT is at least as effective as GR in the treatment of V-pattern strabismus caused by overaction of the inferior oblique muscle.