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
Iris pearls are pathognomonic for 
Select and explain. 
A. Syphilis, B. Sarcoidosis, C. Herpes simplex virus, D. Leprosy
D: Leprosy
Answer: D: Leprosy 
Explanation: Iris pearls are seen as glistening white beads at the pupillary margin. They are compared of bacilli within histiocytes and are pathognomonic for Lepromatous uveitis.