This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular trauma , Subject name: Ophthalmology
[{'content': 'Clinical manifestations of chalcosis include all of the following except \nSelect and explain. \nA. Greenish discolouration of iris, B. Sunflower cataract, C. Kayser-Fleischer ring, D. Deposition of golden plaque at the posterior pole of the retina', 'role': 'user'}, {'content': "Answer: A \nExplanation: Chalcosis It refers to the specific changes produced by the alloy of copper in the eye. Clinical manifestations : 1. Kayser-Fleischer ring: It is a golden brown ring which occurs due to deposition of copper under peripheral pas of the Descemet's membrane of the cornea. 2. Sunflower cataract: It is produced by deposition of copper under the posterior capsule of the lens. It is brilliant golden green in colour and arranged like the petals of a sun flower. 3. Retina: It may show deposition of golden plaques at the posterior pole which reflect the light with a metallic sheen. Ref:- A K KHURANA; pg num:-410", 'role': 'assistant'}]