Abstract
Purpose
This is retrospective study that evaluates the use of combined recession-resection of the superior rectus muscle in the treatment of dissociated vertical deviation (DVD)
Methods
The medical records of 21 patients with bilateral DVD were retrospectively reviewed. Preoperative data were extracted for age, gender, BCVA (logMAR), amblyopia, angle of stereopsis, previous strabismus surgeries and angle of deviation. All included patients received resection of 2.5 mm of the superior rectus muscle prior to its recession in an amount determined by the maximum DVD angle. The main outcome measure was postoperative angle of DVD at the end of six postoperative months and success was identified as absence of manifest DVD .
Results
The mean angle of preoperative DVD was 18.09 PD in the right eye and 16.76 PD in the left eye. The mean amount of SR recession was 8.9 ±1.4 mm in the right eye and 8.7 ±1.5 in the left eye with symmetrical surgery performed in only 7 patients. Mean postoperative angle of DVD was 5.96 in the right eye and 5.86 in the left eye. Surgical success was achieved in 15 patients (71%).
Conclusions
Combined recession-resection of the superior rectus muscle seems to be an effective technique in the management of DVD and could represent a good alternative to other surgical procedures.
Surgery of the vertical tropias: Dissociated vertical deviation and primary overaction of the inferior oblique muscles