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': 'Fluoroscein dye study is done to detect \nSelect and explain. \nA. Assess retinal function of babies, B. Retinal vascular pathology, C. Macular pathology, D. Posterior segment of eye', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Retinal vascular pathology Angiography for fundus examination Angiography is used for dynamic flow study of Iris, Retina or choroid. Following types of angiographies are used. Fluorescein Angiography :- Sodium fluorescein dye is used by injecting it into antecubital vein. It is primarily used for retinal vasculature, but iris & choroid can also be examined. Indocyanine green Angiography :- It is used primarily for choroidal vasculature, especially in choroidal neovascular membranes (CNVM). Therefore, it is used in - i) The identification and delineation ofpoorly defined or occult choroidal neovascularization, (ii) Retinal pigmented epithelium (RPE) detachments.", 'role': 'assistant'}]