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
Is responsible for presenile cataract: 
Select and explain. 
A. Atopic dermatitis, B. Blue dot congenital cataract, C. Dystrophica myotonica, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Ans. All of the above