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': 'Which of the following accurately describe ambliopia? \nSelect and explain. \nA. Color blindness, B. Myopia, C. Any detion from normal usual function of eye, D. Strabismus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: It is paial or complete loss of sight with no ophthalmoscopic finding.', 'role': 'assistant'}]