Abstract :Objective: This study aimed to evaluate the outcomes of maximal levator resection in cases of congenital myogenic ptosis with poor levator function. Method: Thirty-threeptotic eyelids of 30 cases undergoing maximal levator resection were retrospectively included. There were 18 male and 12 female cases. The mean age of the cases was 12.55±5.3 years (range, 4-26 years). For all eyes, vertical palpebral aperture, margin reflex distance, levator functions, and upper eyelid crease height were measured. Ptosisseverity was “mild” when the eyelid elevation was ≤2 mm; “moderate” when the eyelid elevation was 3 mm; and “severe” when the eyelid elevation was ≥4 mm. The mean age of the cases (18 males and 12 females) was 12.55±5.3 years (range, 4-26 years). Results and Conclusion: The mean ptosis severity (vertical palpebral aperture) was 5.136 mm preoperatively and 0.818 mm at the postoperative Month 3 (p<0.001). Surgical outcomes were successful in 26 eyes (78%), satisfactory in 4 eyes (12%), and unsuccessful in 3 eyes (9%).Conclusively, successful outcomes were obtained after maximal levator resection in ptosis cases with poor levator functionin most of casses. Keywords : Acquired ptosis, congenital myogenic ptosis
