This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lacrimal Apparatus and Eyelid Disorders, Subject name: Ophthalmology
[{'content': 'Site of internal hordeolum: \nSelect and explain. \nA. Zeis gland, B. Moll gland, C. Meibomian glands, D. Conjunctiva', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Internal hordeolum It is suppurative inflammation of the meibomian gland which is associated with blockage of the duct. c/f = acute severe pain and swelling of eye lid away from the margin, mild watering and photophobia The pain is more intense in internal than external hordeolum, due to the swelling being embedded deeply in the dense fibrous tissue. External hordeolum - It is an acute suppurative inflammation of lash follicle and its associated glands of Zeis or Moll.', 'role': 'assistant'}]