Evaluation of levator function for efficacy of minimally invasive and standard techniques for involutional ptosis.

Purpose: To evaluate clinical and anatomic outcomes of surgery for involutional ptosis using standard-length or small incisions in relation to preoperative levator function.

Design: Retrospective study.

Methods: Sixty-three patients diagnosed with involutional ptosis who underwent surgical correction using a small or standard-length incision between November 2010 and December 2011 were reviewed; a single surgeon performed surgery using a small incision (8 to 10 mm) in 22 patients and a standard-length incision (20 to 22 mm) in 34 patients.