www.ophthalclass.blogspot.com has the complete class and MCQs on lids and adnexa for undergraduate medical students. Part A of the second class on lids deals with the palpebral fissure, eyelid retractors (levator aponeurosis and Muller’s muscle) and protractors (orbicularis oculi). It discusses the lid to globe apposition, factors responsible for vertical and horizontal tautness of the lids, including the canthal ligaments and tarsus. Horizontal lid laxity leading to entropion and ectropion is explained. A brief outline of management of involutional ectropion and entropion is given.