Efficacy and predictability of Muller's muscle-conjunctival resection with different tarsectomy lengths for unilateral blepharoptosis treatment.

MMCR with tarsectomy was proven to be a safe, rapid, and effective method for patients with mild-to-moderate ptosis. Predictability and symmetry of the outcome were statistically confirmed. We further suggest a 2.1-mm expected MRD1 elevation as a cut point for choosing between 1- or 2-mm tarsectomy.