Abstract
Purpose :
Recurrent exotropia is relatively common following surgery of intermittent exotropia and approximately 30% of patients require more than 1 procedure to maintain alignment of the eyes. We performed a retrospective, observational clinical study to learn about the rate of consecutive esotropia in contralateral recess-resect for recurrent intermittent exotropia after unilateral recess-resect and to evaluate the surgical outcome of ‘modified contralateral recess-resect’ for intermittent exotropia after unilateral recess-resect.
Methods :
36 subjects were included in this retrospective study. All underwent, as a primary surgery for intermittent exotropia, unilateral recess-resect on the non-dominant eye. They were assigned to the subsequent contralateral recess-resect(CRR, n=19, surgical dosages based on Wright’s surgical table) or modified contralateral recess-resect (MRR, n=17, surgical dosages 5Δ reduced on Wright’s surgical table) for recurrent exotropia. Surgical success rate was evaluated. Re-operation rate or prism glasses prescription rate due to consecutive esotropia was evaluated.
Results :
The mean follow-up duration after the reoperation was 25.8 months in CRR group and 24.0 months in MRR group. Surgical success rate was 57.9% in CRR group and 76.5% in MRR group (Fisher’s exact test, p=0.302). Recurrence rate was 0% in CRR group and 17.6% in MRR group (Fisher’s exact test, p=0.059). Re-operation rate or prism glasses prescription rate due to consecutive esotropia was 42.1% in CRR group and 5.9% in MRR group (Fisher’s exact test, p= 0.003).
Conclusions :
Final outcomes were better in MRR group than in CRR group. Consecutive esotropia was significantly more frequent in CRR group than in MRR group. To reduce consecutive esotropia in surgery for recurrent exotropia, MRR is recommended.
This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.