K. Sivakumar, T. G. Umamaheswari
BACKGROUND A and V patterns have been commonly seen in at least one fifth of esotropia and exotropia. This study emphasizes on the efficiency of transposition along with recession/resection surgery of horizontal and oblique muscles in correction of A-V pattern deviations. MATERIALS AND METHODS A prospective study was carried out on 50 eyes of 25 patients who underwent either transposition and recession/resection surgery (R-R surgery) of horizontal muscles or oblique muscles weakening and R-R surgery of horizontal muscles with A-V pattern deviations at Regional Institute of Ophthalmology and Govt. Ophthalmic Hospital, Chennai for the period of 1 year. Surgeries done by single surgeon was taken for the study. RESULTS The patients underwent either transposition and R-R surgery of horizontal muscles or oblique muscle weakening and R-R surgery of horizontal muscles depending upon the type and degree of deviation and the degree of oblique muscle over action. The postoperative correction of degree of deviation, improvement in amblyopia and attainment of BSV were assessed at the end of 1st and 8th week. CONCLUSION Transposition of horizontal and oblique muscle surgeries yielded correction of degree of deviation, improvement of vision in amblyopia and improvement in binocular single vision.
