Fluorescein angiogram (FA)

OVERVIEW

Fluorescein angiography (fluorescein - the type of dye that is used; angiogram - a study of the blood vessels) is an extremely valuable test that provides information about the circulatory system and the condition of the back of the eye. FAs are useful for evaluating many eye diseases that affect the retina.

Retinal photograph of a patient complaining of decreased vision.	Fluorescein angiogram indicating fluid leakage within the retina

The test is performed by injecting a special dye, called fluorescein, into a vein in the arm. In just seconds, the dye travels to the blood vessels inside the eye. A camera equipped with special filters that highlight the dye is used to photograph the fluorescein as it circulates though the blood vessels in the back of the eye. If there are any circulation problems, swelling, leaking or abnormal blood vessels, the dye and its patterns will reveal these in the photographs. The doctor can then make a determination as to the diagnosis, and possible treatment options for the patient. 

In many cases, these photos are taken with a digital camera system, allowing the physician to interpret the results immediately.

Related eye conditions:

St. Luke's Cataract & Laser Institute provides this on-line information for educational and communication purposes only and it should not be construed as personal medical advice.  Information published on this St. Luke's website is not intended to replace, supplant, or augment a consultation with an eye care professional regarding the viewer/user's own medical care.  St. Luke's disclaims any and all liability for injury or other damages that could result from use of the information obtained from this site.

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