A thorough understanding of the anatomy, pathophysiology, appropriate evaluation, and treatment options of lid malpositions. The latest classification of lid malpositions according to their respective etiologies.A systematic preoperative evaluation and decision-making on the proper surgical procedure. Management of ptosis, facial nerve affection, lid retraction, centurion syndrome, floppy eyelids syndrome, and lid lesions.The state-of-the-art lid reconstruction approaches.