Fundus Fluorescein Angiography (FFA)
What is Fundus Fluorescein Angiography?
This is a diagnostic procedure, when a dye (Fluorescein) is injected into a vein in your arm or hand and sets of digital photographs are taken to display the blood vessels at the back of your eye. It shows any abnormal blood vessels and any leaking spots causing your eye problems. This information is essential for the eye consultant to find the problem and plan your treatment
You are advised NOT to drive for the rest of the day after you have had this procedure
Fluorescein(the dye) – The Risks Involved
This dye is a deep orange colour. It has been in use for many years. The fluorescein dye causes few side effects. It has been proved safe to use in young as well as in older patients. The common side effects are nausea and vomiting. Skin rashes and itching are seen at times.
More serious side effects are spasm of the airway, anaphylactic shock and collapse. However, these risks are extremely rare.
After injection, the skin shows temporary yellow discolouration. During this stage, you should avoid exposure to direct sunlight. If the dye leaks outside the vein it may cause temporary pain. This can be relieved by cold compression. If the injection site remains painful or causes you concern, please seek medical advice. The dye is metabolised in the liver and excreted from your body via your kidneys. The urine remains orange-green
in colour for 24-48 hours.
Patients with Diabetes
This dye gives a false high reading in the urine and on blood sugar tests. You should not adjust your insulin or any of your diabetic treatments based on these results during the first 2 days following the fluorescein angiogram. If you are concerned, please seek medical advice.
Eye conditions in which your doctor may advice an FFA
What Will Happen On the Day of the Procedure?
On arrival for your appointment you will have your
The test is carried out in stages.
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