<prompt> Fluoroscein dye study is done to detectAssess retinal function of babiesRetinal vascular pathologyMacular pathologyPosterior segment of eye  <response>: 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. 