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': 'All are the causes of neovascular glaucoma except: \nSelect and explain. \nA. Intraocular tumour, B. Central retinal vein occlusion, C. Diabetic retinopathy, D. Central serous retinopathy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Central serous retinopathy', 'role': 'assistant'}]