This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Amsler sign - \nSelect and explain. \nA. Fuch heterochromatic iridocyclitis, B. Posner-schlossman syndrome, C. Uveal-effusion syndrome, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (Ref: Yanoff & Ducker 3rd/e p.865) During paracentesis in Fuch\'s heterochromic iridocyclitis, there is bleeding from neo-vasculorizarion. This is known as "Amsler\'s sign".', 'role': 'assistant'}]