This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': "Berlin's oedema occurs due to \nSelect and explain. \nA. Penetrating injury to eye, B. Blunt trauma to eye, C. Radiation injury to eye, D. Chemical injury to eye", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Also called commotio retinae is oedema at the macula due to blunt trauma .It present as cherry red spot at the macula Refer khurana 6/e 431', 'role': 'assistant'}]