title: Surgical outcomes of medial rectus recession in esotropia with cerebral palsy.
abstract: OBJECTIVE
  To determine the outcome of a reduced amount of medial rectus (MR) muscle recession in esotropes with cerebral palsy (CP) and to compare the surgical response with that of normal controls.
  
  
  METHODS
  Retrospective cohort study.
  
  
  METHODS
  Thirty esotropes with CP and 60 age-matched esotropes without CP who underwent a unilateral or bilateral MR muscle recession.
  
  
  METHODS
  The surgical amount of MR muscle recession was reduced by 1 mm per muscle in patients with CP.
  
  
  METHODS
  Success rates, surgical response, cumulative probabilities of success, and factors affecting surgical responses evaluated by generalized linear mixed models.
  
  
  RESULTS
  In patients with CP, the initial success rate was higher (P = 0.037) and the rate of undercorrection was lower (P = 0.037) compared with patients without CP. At the final visit, success rates were not significantly different between both groups. However, the rate of overcorrection was higher (P = 0.003) compared with patients without CP. The rate of overcorrection per person-year during follow-up was 11% in patients with CP and 2% in patients without CP. Patients with CP showed a greater surgical response than did those without CP, at about 1.3 prism diopters per millimeter of MR muscle recession (P<0.001).
  
  
  CONCLUSIONS
  Even with the reduced amount of recession, esotropes with CP showed a greater surgical response to MR muscle recession than did those without CP, and the incidence of late overcorrection was significantly higher compared with that of patients without CP.
authors.affiliation: Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.
authors.forename: Dae Joong
authors.initials: DJ
authors.lastname: Ma
authors.forename: Hee Kyung
authors.initials: HK
authors.lastname: Yang
authors.forename: Jeong-Min
authors.initials: JM
authors.lastname: Hwang
mesh_terms: D002547:Cerebral Palsy / Q000150:complications*; D002675:Child, Preschool; D004948:Esotropia / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D005133:Eye Movements; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009801:Oculomotor Muscles / Q000503:physiopathology / Q000601:surgery*; D013508:Ophthalmologic Surgical Procedures / Q000379:methods*; D012189:Retrospective Studies; D016896:Treatment Outcome; D015348:Vision, Binocular / Q000502:physiology