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': 'In concussion trauma, damage to ocular structures is caused by: \nSelect and explain. \nA. Mechanical tearing of the tissues, B. Disruption of physiological activity by damage to tissue cells, C. Vascular damage leading to ischaemia, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. All of the above', 'role': 'assistant'}]