State- of- the- art Fundus camera takes pictures of the retina .It helps to document , assess the present condition and the progression of disease with time.A fundus angiogram uses fluorescein dye and the camera to take pictures and evaluate the blood flow through the vessels in the back of the eye.
During an eye angiogram, the dye is injected into a vein in your arm. Once injected, it takes about 10 to 15 seconds to circulate through your body. As the dye enters the blood vessels in your eyes, a series of photos are taken to chart the dye’s progress. More pictures are taken after most of the dye has passed through your eyes to see if any of it has leaked out of the blood vessels. Any dye that leaks out of the blood vessels will color the tissues and fluid in the eye. Filters in the camera allow the areas colored by the dye to show up in the photos. Unlike other angiogram procedures, an eye angiogram is not an X-ray procedure, so you are not exposed to any radiation.