This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
Most common ocular foreign body is 
Select and explain. 
A. Chisel and hammer, B. Glass, C. Plastic, D. Stone
A: Chisel and hammer
Answer: A: Chisel and hammer 
Explanation: most common occular foreign body is iron. And the most common mode is chissel and hammer Refer khurana 6/e p 421