title: [Stereoacuity before and after surgery in patients with acquired excyclotorsion].
abstract: OBJECTIVE
  To investigate the stereoacuity before and after superior oblique sagittal transposition in patients with acquired excyclotorsion.
  
  
  METHODS
  14 cases of acquired excyclotorsion who had complaints of forward and downward torsional diplopia were treated with superior oblique sagittal transposition. All patients were examined with Titmus test prior and after surgery.
  
  
  RESULTS
  Surgical treatment greatly improved torsional diplopia. The stereoacuity improved gradually from 800 to 60 seconds of arc, peripheral to macular stereoacuity, and even foveal stereoacuity.
  
  
  CONCLUSIONS
  The superior oblique sagittal transposition is an effective method for primary and down gaze acquired excyclotorsion. The operation not only alleviated diplopia in the practical fixation field, but also improved stereoacuity.
authors.affiliation: Tianjin Eye Hospital, Tianjin 300040, China. weizhang02@yahoo.com
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Kan-xing
authors.initials: KX
authors.lastname: Zhao
authors.forename: Xin
authors.initials: X
authors.lastname: Guo
authors.forename: Cui-qin
authors.initials: CQ
authors.lastname: DU
authors.forename: Hui-zhi
authors.initials: HZ
authors.lastname: Ma
authors.forename: Yi-ying
authors.initials: YY
authors.lastname: Yue
authors.forename: Li-na
authors.initials: LN
authors.lastname: Zhu
authors.forename: Xia
authors.initials: X
authors.lastname: Chen
authors.forename: Kun-ying
authors.initials: KY
authors.lastname: Song
mesh_terms: D000328:Adult; D003867:Depth Perception; D004172:Diplopia / Q000503:physiopathology / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009801:Oculomotor Muscles / Q000503:physiopathology / Q000601:surgery; D013508:Ophthalmologic Surgical Procedures / Q000379:methods; D012189:Retrospective Studies; D013285:Strabismus / Q000503:physiopathology / Q000601:surgery*