title: Comparison of bilateral lateral rectus recession and unilateral recession resection for basic type intermittent exotropia in children.
abstract: OBJECTIVE
  To compare surgical outcome of bilateral lateral rectus recession (BLR-rec) and unilateral lateral rectus recession combined with medial rectus resection (R&R) for the basic type of intermittent exotropia (IXT) in children.
  
  
  METHODS
  Eighty-five consecutive patients aged 3-15 years old with the basic type IXT who underwent surgery and had a minimum postoperative follow-up of 6 months were retrospectively reviewed. Thirty-eight patients underwent BLR-rec and 47 underwent R&R. Successful surgical alignment was defined as esophoria/tropia ≤5 PD (prism dioptres) to exophoria/tropia ≤8 PD in primary gaze while viewing distant or near targets.
  
  
  RESULTS
  After a mean follow-up of 14.8 ± 9.5 months, the subjects who had undergone R&R surgery had a significantly higher success rate than those who had BLR-rec surgery (85.1% vs 65.8%, p=0.037). The undercorrection rate was significantly lower in the R&R group than in the BLR-rec group (6.4% vs 23.7%, p=0.023) and there was no significant difference in the overcorrection rate between the two groups (10.5% vs 8.5%, p=1.000).
  
  
  CONCLUSIONS
  R&R is more effective than BLR-rec surgery in the long term for the basic type IXT in children.
authors: Department of Ophthalmology, Provincial Hospital affiliated to Shandong University, Jinan, Shandong, PR China. wang_glasses@yahoo.com.cn
authors: Lihua
authors: L
authors: Wang
authors: Qizheng
authors: Q
authors: Wu
authors: Xiangyun
authors: X
authors: Kong
authors: Zhiwei
authors: Z
authors: Li
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005099:Exotropia / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009801:Oculomotor Muscles / Q000503:physiopathology / Q000601:surgery*; D013508:Ophthalmologic Surgical Procedures; D012189:Retrospective Studies; D016896:Treatment Outcome; D015348:Vision, Binocular / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology
keywords: Child health (paediatrics); Muscles; Treatment Surgery