External Levator Advancement vs Müller's Muscle-Conjunctival Resection for Correction of Upper Eyelid Involutional Ptosis

External levator advancement and CJM performed alone or with concurrent blepharoplasty are effective treatments for upper eyelid ptosis. Residual ptosis or postoperative eyelid retraction occurs in up to 20% of cases and can be addressed successfully with a second operation.