Familial ptotic lid elevation during ipsilateral abduction.

Purpose: To report and discuss the clinical findings of a 17-member family with 2 siblings who exhibit ptosis and abnormal synkinetic lid elevation associated with ipsilateral abduction.

Subjects And Methods: Sixteen members of the 17-member immediate family underwent ophthalmic examination.

Results: Two siblings exhibited ptosis and abnormal synkinetic lid elevation associated with ipsilateral abduction.