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
Not a cause of superior limbic keratoconjunctivitis: 
Select and explain. 
A. Thyroid Ophthalmopathy, B. Chloroma, C. Severe dry eye, D. Mooren's ulcer
D: Mooren's ulcer
Answer: D: Mooren's ulcer 
Explanation: 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