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Br J Ophthalmol 97:870-873 doi:10.1136/bjophthalmol-2013-303167
  • Clinical science

Comparison of bilateral lateral rectus recession and unilateral recession resection for basic type intermittent exotropia in children

  1. Zhiwei Li
  1. Department of Ophthalmology, Provincial Hospital affiliated to Shandong University, Jinan, Shandong, P.R. China
  1. Correspondence to Dr Lihua Wang, Department of Ophthalmology, Provincial Hospital affiliated to Shandong University, No. 324, Jingwu Road, Jinan, Shandong 250021, P.R. China; wang_glasses{at}yahoo.com.cn
  • Received 27 January 2013
  • Revised 18 March 2013
  • Accepted 14 April 2013
  • Published Online First 4 May 2013

Abstract

Aims 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.

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