Fluorescein angiography
St. Luke's Hospital
Main Number: 314-434-1500 Emergency Dept: 314-205-6990 Patient Billing: 888-924-9200
Find a Physician Payment Options Locations & Directions
Follow us on: facebook twitter Mobile Email Page Email Page Print Page Print Page Increase Font Size Decrease Font Size Font Size
America's 50 Best Hospitals
Meet the Doctor
Spirit of Women
Community Health Needs Assessment
Home > Health Information

Multimedia Encyclopedia

Fluorescein angiography

Definition

Fluorescein angiography is an eye test that uses a special dye and camera to look at blood flow in the retina and choroid, the two layers in the back of the eye.

Alternative Names

Retinal photography; Eye angiography

How the Test is Performed

Eye drops that make the pupil dilate will be given. You will be asked to place your chin on the camera's chin rest and your forehead against a support bar to keep your head still during the test.

The health care provider will take pictures of the inside of your eye. After the first group of pictures are taken, a dye called fluorescein is injected into a vein, usually at the bend of your elbow. Then, a special camera takes pictures as the dye moves through the blood vessels in the back of your eye.

How to Prepare for the Test

You will need someone to drive you home, because your vision may be blurred up to 12 hours after the test.

You may be told to discontinue drugs that could affect the test results. Tell your health care provide about any allergies, particularly reactions to iodine.

You must sign an informed consent form. You must remove contact lenses before the test.

Tell the health care provider if you may be pregnant.

How the Test Will Feel

When the needle is inserted, some people feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there may be some throbbing.

When the dye is injected, you may have mild nausea and a warm sensation. These symptoms are usually very brief.

The dye will cause your urine to be darker, and possibly orange in color, for a day or two after the test.

Why the Test is Performed

This test is done to see if there is proper blood flow in the blood vessels in the two layers in the back of your eye (the retina and choroid).

It can also be used to diagnose problems in the eye or to determine how well certain eye treatments are working.

Normal Results

A normal result means the vessels appear a normal size, there are no new abnormal vessels, and there are no blockages or leakages.

What Abnormal Results Mean

If blockage or leakage is present, the pictures will map the location for possible treatment.

An abnormal value on a fluorescein angiography may be due to:

  • Blood flow (circulatory) problems, such as blockage of the arteries
  • Cancer
  • Diabetic or other retinopathy
  • High blood pressure
  • Inflammation or edema
  • Macular degeneration
  • Microaneurysms -- enlargement of capillaries in the retina
  • Tumors
  • Swelling of the optic disc

Additional conditions under which the test may be performed:

Risks

There is a slight chance of infection any time the skin is broken. Rarely, a person is hypersensitive to the dye and may experience:

  • Dizziness or faintness
  • Dry mouth or increased salivation
  • Hives
  • Increased heart rate
  • Metallic taste in mouth
  • Nausea and vomiting
  • Sneezing

Serious allergic reactions are rare.

Your urine will be darker, and possibly orange in color, for a day or two after the test.

Considerations

The test results are harder to interpret in people with cataracts.

References

Maguire JI, Federman JL. Intravenous fluorescein angiography. In: Tasman W, Jaeger EA, eds. Duane’s Ophthalmology. 15th ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 2009:chap 44.

Ciardella AP, Kaufman SR, Yannuzzi LA. The use of fluorescein angiography in acquired macular diseases. In: Tasman W, Jaeger EA, eds. Foundations of Clinical Ophthalmology. 15th ed. Philadelphia, Pa: Lippincott Williams & Wilkins; 2009:chap 113F.


Review Date: 9/17/2012
Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Franklin W. Lusby, MD, Ophthalmologist, Lusby Vision Institute, La Jolla, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
adam.com
 


Back  |  Top
About Us
Contact Us
History
Mission
Locations & Directions
Quality Reports
Annual Reports
Honors & Awards
Community Health Needs
Assessment

Newsroom
Services
Brain & Spine
Cancer
Heart
Maternity
Orthopedics
Pulmonary
Sleep Medicine
Urgent Care
Women's Services
All Services
Patients & Visitors
Locations & Directions
Find a Physician
Tour St. Luke's
Patient & Visitor Information
Contact Us
Payment Options
Financial Assistance
Send a Card
Mammogram Appointments
Health Tools
My Personal Health
mystlukes
Spirit of Women
Health Information & Tools
Clinical Trials
Health Risk Assessments
Employer Programs -
Passport to Wellness

Classes & Events
Classes & Events
Spirit of Women
Donate & Volunteer
Giving Opportunities
Volunteer
Physicians & Employees
For Physicians
Remote Access
Medical Residency Information
Pharmacy Residency Information
Physician CPOE Training
Careers
Careers
St. Luke's Hospital - 232 South Woods Mill Road - Chesterfield, MO 63017 Main Number: 314-434-1500 Emergency Dept: 314-205-6990 Patient Billing: 888-924-9200
Copyright © St. Luke's Hospital Website Terms and Conditions  |  Privacy Policy  |  Patient Notice of Privacy Policies PDF Sitemap St. Luke's Mobile