This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular trauma , Subject name: Ophthalmology
Copper deposition in cornea leads to - 
Select and explain. 
A. Keratoconus, B. Keratoglobus, C. KF ring, D. Siderosis
C: KF ring
Answer: C: KF ring 
Explanation: Kayser- Fleischer ring. It is a golden brown ring which occurs due to deposition of copper under peripheral pas of the descemet's membrane of the cornea. Ref: Parson's 22 nd edition , page no.396