Binocular Potential Score: A Novel Concept

Singh, Vinita; Panday, Manish; Agarwal, Siddharth
March 2008
Journal of Pediatric Ophthalmology & Strabismus;Mar/Apr2008, Vol. 45 Issue 2, p104
Academic Journal
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.


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