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': 'Diabetic ischemic maculopathy is characterized by all except ? \nSelect and explain. \nA. It occurs due to microvascular blockage, B. Mild visual loss, C. Areas of non perfusion are evident on fluorescein angiography, D. Microaneurysms and hemorrhages are seen', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is `b' i.e., Mild visual loss Ischaemic diabetic maculopathy It occurs due to microvascular blockage. Clinically it is characterised by marked visual loss with microaneurysms, haemorrhages, mild or no macular oedema and a few hard exudates. Fluorescein angiography shows areas of non-perfusion which in early cases are in the form of enlargement of foveal avascular zone (FAZ), later on areas of capillary dropouts are seen and in advanced cases precapillary aerioles are blocked.", 'role': 'assistant'}]