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
Termination of Descemet's membrane is: 
Select and explain. 
A. Trabecular mesh work, B. Schlemm canal, C. Scieral spur, D. Ring of Schwalbe
D: Ring of Schwalbe
Answer: D: Ring of Schwalbe 
Explanation: Descemet's membrane is a strong homonymous structure less layer of cornea. It ends abruptly at the limbus as the ring of Schwalbe. Unlike Bowman's membrane it can regenerate and is very resistant to the inflammatory process of cornea