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
Koeppe nodules are present on – 
Select and explain. 
A. Cornea, B. Conjunctiva, C. Iris, D. Retina
C: Iris
Answer: C: Iris 
Explanation: Iris nodules

There are many types of nodules that develop on iris in granulomatous uveitis:-


Koeppe nodule: - Seen at pupillary margin.
Busacca's nodule: - Seen on the peripheral part of the anterior surface of iris.
Tubercular nodules: - Scattered throughout the iris and ciliary body, mostly in the stroma. They are more common at pupillary margin.
Syphilitic nodules:-At pupillary margin.
Sarcoid nodules:-At pupillary margin or in the stroma of the iris.