This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular trauma , Subject name: Ophthalmology
[{'content': "Dalen Fuch's nodules seen in \nSelect and explain. \nA. Sympathetic Ophthalmitis, B. Chronic iridocyclitis, C. Neurofibromatosis, D. Trachoma", 'role': 'user'}, {'content': "Answer: A \nExplanation: (Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 163, 437)Dalen Fuch's nodules are seen in sympathetic ophthalmitisDalen-Fuchs' are formed due to the proliferation of the pigment epithelium (of the iris, ciliary body, and choroid) associated with invasion by the lymphocytes and epithelioid cells. Retina shows perivascular cellular infiltration (sympathetic perivasculitis)", 'role': 'assistant'}]