Intravenous Fluorescein Angiogram
Angiography is a diagnostic testing procedure performed in the office to help a retina specialist diagnose disease, further classify pathology, help guide treatment (ie intravitreal injections, PDT, laser photocoagulation), and follow the course of your condition. Fluorescein dye is injected into a vein in the arm (very similar to a blood draw) and travels into the retinal circulation where specialized cameras are used to track its course through arteries, veins, and capillaries. Angiography typically takes about 10-15 minutes to perform. No radiation such as X-rays are used. This vegetable based dye is filtered by your kidneys causing an orange color to your urine lasting for up to 24 hours. The most common side effect, occurring in about 1 in 20 patients, is nausea usually lasting only a few minutes. Allergic reactions are much less common and usually manifest as a mild skin rash or itching. Anaphylaxis (a severe allergic reaction) is estimated to occur very rarely (1 in 150,000 patients).