Surgical outcomes of augmented bilateral lateral rectus recession with conjunctival recession in patients of intermittent exotropia

ABSTRACT

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

Abbreviations

BLR: Bilateral lateral rectus: ULR: Unilateral lateral rectus; PD: Prism diopter; D: Diopter; PBCT: Prism bar cover test; MR: Medial rectus; IXT: Intermittent exotropia

Conflicts of interest

The authors declare that there are no conflicts of interest in this paper.

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent forms. In the form the patients have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.