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
Ring of Sommerring is seen in - 
Select and explain. 
A. Galactosemia, B. Dislocztion of lens, C. Acute congestive glaucoma, D. After cataract
D: After cataract
Answer: D: After cataract 
Explanation: Ring of sommerring and Elsching's are seen in after cataract. (Ref: Parson's 22nd/e p.285 & 21st/e p.279)