This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
Stye is an acute suppurative inflammation of 
Select and explain. 
A. Gland of Moll, B. Meibomian gland, C. Gland of Zeis, D. All of the above
C: Gland of Zeis
Answer: C: Gland of Zeis 
Explanation: EXTERNAL HORDEOLUM (STYE) It is an acute suppurative inflammation of gland of the Zeis. Etiology: Causative organism commonly involved is Staphylococcus aureus. Signs : 1) Stage of cellulitis is characterised by localised, hard, red, tender swelling at the lid margin associated with marked oedema 2) Stage of abscess formation is characterised by a visible pus point on the lid margin in relation to the affected cilia. Usually there is one stye, but occasionally, these may be multiple. Ref:- A K KHURANA; pg num:-345