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Fluorescein angiography
Definition:
Fluorescein angiography is an eye test that uses an orange-colored, fluorescent dye (fluorescein), and a special camera, to take pictures and analyze the blood circulation in the retina and choroid. Alternative Names:
Retinal photography; Eye angiography Text Continues Below
How the test is performed:
Mydriatic eye drops (drops that make the pupil dilate) are administered. The chin is placed on a chin rest, and the forehead against a support bar to keep the head still during the test.
Photographs of the inside of the eye are taken. Then, dye is injected into a vein, usually at the bend of the elbow (the antecubital vein).
As the dye is injected, a series of photographs are taken. Afterwards, the needle is removed and pressure is applied to the injection site for several minutes.
More photographs are taken up to 20 minutes after the injection. Allergy to the dye is rare, but may occur. A history of allergies will be taken before the test. How to prepare for the test:
Arrange for transportation because your vision may be blurred up to 12 hours after the test. The health care provider may instruct you to discontinue drugs that could affect the test (see "Special considerations"). You must sign an informed consent form. You must remove contact lenses before the test. Tell the health care provider if you have a hypersensitive reaction to iodine. Tell the health care provider if you may be pregnant. Infants and children: The test is more commonly performed on adults, but rarely may be performed on children. The physical and psychological preparation you can provide for this or any test or procedure depends on your child's age, interests, previous experiences, and level of trust. For specific information regarding how you can prepare your child, see the following topics as they correspond to your child's age:
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