Acquired ptosis associated with a conjunctival cyst.

A 44-year-old woman with a history of previous ptosis surgery presented with a moderate ptosis of the left upper eyelid and a large cystic mass extending over the length of that lid. The mass was excised completely and histologically found to be a conjunctival ductal cyst. The levator aponeurosis was disrupted by the cyst and required reconstruction. This case demonstrates an acquired ptosis associated with a large conjunctival cyst as a late complication of ptosis surgery.