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': 'Tylosis refers to: \nSelect and explain. \nA. Hyperophy and drooping of eyelid, B. Inversion of eyelid, C. Senile eversion of eyelid, D. Distoion of cilia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Hyperophy and drooping of eyelid', 'role': 'assistant'}]