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Comparison of bilateral medial rectus plication and resection for the treatment of convergence insufficiency‐type intermittent exotropia
Author(s) -
Wang Xi,
Zhang Wenqiu,
Chen Bingjie,
Liao Meng,
Liu Longqian
Publication year - 2019
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/aos.14056
Subject(s) - medicine , surgery , convergence insufficiency , minimum deviation , exotropia , intermittent exotropia , stereoscopic acuity , strabismus surgery , strabismus , ophthalmology , visual acuity , optics , physics
Purpose To compare the clinical outcomes of bilateral medial rectus plication and resection for the treatment of convergence insufficiency ( CI )‐type intermittent exotropia ( IXT ). Methods Fifty‐five patients with CI ‐type IXT were included in this prospective study and were followed for 6 months. The patients were randomized into two groups: the bilateral medial rectus plication ( BMRP ) group ( n = 27) and the bilateral medial rectus resection ( BMRR ) group ( n = 28). The eye examinations of each patient were carried out before the surgery and at 1 day and 1, 3 and 6 months postoperatively. The success rate, angle of deviation, stereoacuity, operative time and postoperative conjunctival swelling and redness score were analysed. Results The mean deviation at distance at 1 day postoperatively was +6.6 ± 5.6 prism dioptres ( PD ) in the BMRP group, which was lower than the value of +10.8 ± 9.3 PD observed in the BMRR group (p = 0.046). There was more overcorrection in the BMRR group at first day after surgery. However, there were no significant differences in deviations or success rates were observed between the two groups at 1, 3 and 6 months after surgery (p > 0.05). The operative time in the BMRP (12.9 ± 1.4 min) group was shorter than that in the BMRR (14.7 ± 1.4 min) group (p < 0.001). Postoperative conjunctival swelling and redness were milder in the BMRP group than in the BMRR group (p < 0.001). Conclusion The BMRP surgery could be an alternative procedure to BMRR for the treatment of CI ‐type IXT with less immediate postoperative overcorrection and simpler, safer, less traumatic characteristics.