<prompt> Fluorescein dye study is done to detectAssess retinal function of babiesRetinal vascular pathologyMacular pathologyPosterior segment of eye  <response>: A fluorescein angiography is a medical procedure in which a fluorescent dye is injected into the bloodstream. The dye highlights the blood vessels in the back of theeye so they can be photographed.Retinal vascular disorders e.g., diabetic retinopathy and central retinal vein occlusion Reference : A K KHURANA Comprehensive Ophthalmology; edition 4; page-273 