title: [Dose-effect relation in revision surgery for consecutive strabismus divergens in adults].
abstract: BACKGROUND
  The aim of this study was to establish a dose-effect relationship between the reduction of the angle of deviation and the millimeters of the reoperation performed in patients with consecutive exotropia.
  
  
  METHODS
  A total of 46 patients who had undergone reoperation for consecutive exotropia (group 1: advancement of the former recessed medial rectus muscle and group 2: additional rececession of the lateral rectus muscle) were reexamined.
  
  
  RESULTS
  The dose-effect relationship was 2 degrees /mm in group 1 and1.6 degrees /mm far distance and 1.8 degrees /mm near in group 2. Within the first 4 months after the reoperation we found an exodrift of up to 6 degrees , which remained stable; 98% of our patients reported that their quality of life had improved.
  
  
  CONCLUSIONS
  In cases of consecutive exotropia we consider the postoperative exdodrift in the planing of our reoperation. During the ensuing years patients can expect stability of the results achieved by the reoperation.
authors.affiliation: Augenklinik der Medizinischen Universität Graz. andrea.langmann@meduni-graz.at
authors.forename: A
authors.initials: A
authors.lastname: Langmann
authors.forename: S
authors.initials: S
authors.lastname: Lindner
authors.forename: M
authors.initials: M
authors.lastname: Koch
authors.forename: W
authors.initials: W
authors.lastname: Wackernagel
authors.forename: R
authors.initials: R
authors.lastname: Hörantner
mesh_terms: D000328:Adult; D005099:Exotropia / Q000175:diagnosis* / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009801:Oculomotor Muscles / Q000601:surgery*; D013508:Ophthalmologic Surgical Procedures / Q000379:methods*; D012086:Reoperation / Q000379:methods