This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Ophthalmology
[{'content': "Kayser- Fleischer rings (KF rings) are seen in: \nSelect and explain. \nA. Pterygium, B. Hematochromatosis, C. Wilson's disease, D. Menke's kinked hair syndrome", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Wilson&;s disease * Wilsons disease is a rare genetic disease that requires the-- patient to inherit two abnormal copies of the gene ATP7B. In other words both parents most be carriers (have one abnormal copy of this gene). * The chances of getting this disease is about 1 in 40,000 people world wide. The chances of being a carrier is about 1 in 90. * It affects men, women and all races equally. * Wilson disease Is a genetic disorder that prevents the body from expelling excess copper. * Copper builds up in the liver, brain, kidneys, and eyes. Over time the copper causes irreversible organ damage. * If left untreated this Ref: AK khurana 7th ed.', 'role': 'assistant'}]