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
Most common cause of cataract is 
Select and explain. 
A. Age related changes, B. Hereditary, C. Diabetes mellitus, D. Trauma induced
A: Age related changes
Answer: A: Age related changes 
Explanation: Most common cause of acquired cataract is senile cataract Refer: Khurana 6th edition page number 190