Fluorescein dye study is done to detect
High-Yield Explanation
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