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
[{'content': 'Polychromatic lusture is seen in: \nSelect and explain. \nA. Complicated cataract, B. Post radiation cataract, C. Diabetes mellitus, D. Congenital cataract', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Poly chromatic luster or bread crumb appearance is seen in complicated cataract. Ref: A.K KHURANA (2005), Chapter 5, "Disease of The Lens", In the book, "Opthalmology", 3rd Edition, Newdelhi, Page 194, 195', 'role': 'assistant'}]