This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of Cornea, Subject name: Ophthalmology
[{'content': "Not a cause of superior limbic keratoconjunctivitis: \nSelect and explain. \nA. Thyroid Ophthalmopathy, B. Chloroma, C. Severe dry eye, D. Mooren's ulcer", 'role': 'user'}, {'content': "Answer: D \nExplanation: Mooren's ulcer is not a cause of superior limbic kerato conjunctivitis. SUPERIOR LIMBIC KERATO CONJUNCTIVITIS Causes Thyroid Ophthalmopathy Proptosis(can be seen in chloroma) Facial Nerve palsy Severe dry eye/ Meibomitis Superior conjunctiva shows punctate epithelial erosions. Rx Lid Taping in night Removal of any epithelial filaments Lubricating eye ointment gel", 'role': 'assistant'}]