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Fluorescein Angiography
An eye angiogram uses fluorescein dye and a camera to take pictures and evaluate the blood flow through the vessels in the back of the eye (retina).
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.
Why It Is Done
An eye angiogram is done to:
-Confirm the presence of abnormal blood vessels in or under the retina.
-Check for and locate leaking blood vessels in the retina, especially if you have symptoms that suggest damage to or swelling of the retina, such as blurred or distorted vision. This is often caused by diabetic retinopathy or macular degeneration.
-Help find inflammation or tumors in the eye.
-Locate the precise areas of the retina that need treatment prior to laser eye surgery.
-Help find blockage in the blood vessels that feed or drain blood from the retina (retinal arteries and veins).
Angiografia me Fluorescein
