This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
Chalcosis is assosciated with 
Select and explain. 
A. Copper, B. Zinc, C. Lead, D. Gold
A: Copper
Answer: A: Copper 
Explanation: Chalcosis is copper deposition whereas gold deposition is called Chrisiasis Long term intake of gold of more than 1000mg leads to corneal deposits and anterior subscapular cataract Refer: Khurana 6th edition page number 434