RESUMEN
A prospective analysis of 19 patients with dissociated deviation and/or inferior oblique overaction who had an anterior transposition of the inferior oblique was undertaken. The mean postoperative follow-up was 8,3 months. Clinical aspects of dissociated vertical deviation and inferior oblique overaction were studied. Thirty two anterior transpositions were performed on eyes with inferior oblique overaction and the mean correction was 77,6. The mean V patterns horizontal deviation at last followup was 8,4 for bilateral cases and 14,5 for unilateral cases. Conclusion, anterior transposition on the inferior oblique is an effective treatment for dissociated vertical deviation and inferior oblique overaction with beneficial effect on the V patterns