This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea and sclera, Subject name: Ophthalmology
[{'content': "Herbe's pits are seen in \nSelect and explain. \nA. Trachoma, B. Spring catarrh, C. Phlyctenular conjunctivitis, D. Sarcoidosis", 'role': 'user'}, {'content': "Answer: A \nExplanation: (Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 67 - 71)Signs of TrachomaConjunctival signs:- Congestion, conjunctival follicles (boiled sagograin like), Papillary hyperplasia, conjunctival scarring (Arlt's line), concretionCorneal signs: superficial keratitis, Herbe follicles, Pannus, corneal ulcer, Herbe pits, Corneal opacity", 'role': 'assistant'}]