Purpose: To evaluate the surgical outcome of augmented BLR recession with conjunctival recession in cases of IXT.
Method: A total of 15 patients of the basic type of IXT were included in this prospective study. The patients underwent augmented BLR recession with conjunctival recession and on the basis of postoperative deviation, the outcome was assessed in terms OF orthophoria/success (< or =10 PD exotropia and < or =5 PD esotropia), residual exotropia/undercorrection (>10 PD exotropia), and overcorrection (>5 PD esotropia).
Results: Preoperative primary horizontal deviation was 30.80 ± 9.56 PD (16-42 PD) for near (0.3 m) and was 33.93 ± 9.97PD (15-45 PD) for distance (6 m). The mean postoperative primary horizontal deviation was 5.6 ± 1.5 PD (4-8 PD) for distance and 6.73 ± 2.15 PD (4-10 PD) for near at 6 months follow-up. After 12 weeks of surgery, 12 (80%) of the patients were orthophoric, 2 (13.3%) of the patients were overcorrected and 1 (6.7%) of the patient was undercorrected for near and all 15 (100.0%) patients were orthophoric for distance. This alignment was maintained till 6 months of follow-up.
Conclusions: Although fornix-based incisions for squint surgery are preferred these days augmented BLR recession with conjunctival recession by limbal-based incision leads to good surgical outcome and prevents undercorrection and recurrence.
Keywords: Intermittent exotropia; bilateral augmented lateral rectus recession; conjunctival recession; residual exotropia.