title: Binocular potential score: a novel concept.
abstract: OBJECTIVE
  To assess the predictive value of an objective system for preoperative binocular potential scoring on the postoperative outcome in horizontal concomitant strabismus.
  
  
  METHODS
  A prospective interventional study of 100 patients undergoing surgery for horizontal concomitant strabismus was conducted. The binocular potential score (BPS) was evaluated on the basis of age of onset, duration, intermittency, variability, vision, and responses on synoptophore and Worth four-dot test. Patients were grouped according four grades (I = the best and IV = the weakest). The surgical outcome was evaluated by binocular function and ocular alignment.
  
  
  RESULTS
  All patients with a BPS of grade I maintained good binocular function postoperatively. Within-grade analysis revealed a statistically significant improvement in postoperative binocular function in patients with a BPS of grade II (P = .0047), grade III (P = .0030), and grade IV (P = .0143). Grade comparisons showed significant differences between grades II and IV (P = .00) and grades III and IV (P = .0005), but not between grades II and III.
  
  
  CONCLUSIONS
  The BPS is a useful tool for predicting surgical outcome and it may be valuable to conduct multicentric trials using this objective measurement.
authors.affiliation: Department of Ophthalmology King George' Medical University, Lucknow, India.
authors.forename: Vinita
authors.initials: V
authors.lastname: Singh
authors.forename: Manish
authors.initials: M
authors.lastname: Panday
authors.forename: Siddharth
authors.initials: S
authors.lastname: Agarwal
mesh_terms: D000293:Adolescent; D000328:Adult; D017668:Age of Onset; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D009801:Oculomotor Muscles / Q000503:physiopathology* / Q000601:surgery; D013508:Ophthalmologic Surgical Procedures; D011184:Postoperative Period; D011446:Prospective Studies; D013285:Strabismus / Q000503:physiopathology* / Q000601:surgery; D016896:Treatment Outcome; D015348:Vision, Binocular / Q000502:physiology*; D014792:Visual Acuity