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
Von Herick angle grade '3' of anterior chamber denotes 
Select and explain. 
A. Wide open angle, B. Moderately open angle, C. Moderately narrow angle, D. Closed angle
B: Moderately open angle
Answer: B: Moderately open angle 
Explanation: Ans. is 'b' i.e., Moderately open angle