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
Inward rolling of eyelid margin is known as: March 2013 
Select and explain. 
A. Entropion, B. Ectropion, C. Trichiasis, D. Ankyloblepharon
A: Entropion
Answer: A: Entropion 
Explanation: Ans. A i.e. Entropion