This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
Munson's sign is seen in: 
Select and explain. 
A. Keratoconus, B. Keratoglobus, C. Microcornea, D. All
A: Keratoconus
Answer: A: Keratoconus 
Explanation: Ans. Keratoconus