Wet AMD
Leakage and abnormal vessel growth can be located more precisely and assessed for activity.
Make retinal vessels and leaks visible
Retinal fluorescein angiography
Fluorescein angiography shows how dye travels through the retinal and choroidal vessels, revealing poor circulation, leaking vessels and abnormal vessel growth.
Understanding the procedure
A sequence of images over time.
After fluorescein dye is injected into a vein in your arm, it quickly reaches the eye. A specialised camera takes photographs of the back of the eye at early and later stages. We assess where the dye appears, when it arrives and whether it leaks from blood vessels.
This test complements OCT and the retinal examination. It is particularly useful when vessel activity, circulation or the precise site of leakage matters for diagnosis or treatment planning.
- Procedure
- Dye and photographic series
- Access
- Arm vein
- pupil dilation
- usually required
- Driving ability
- After that, frequently restricted
Used where needed
When is this examination particularly helpful?
Retinal findings and the clinical question determine the indication.
Diabetic retinopathy
We document leaking vessels, poor circulation and new vessel growth to assess the stage and plan treatment.
Vascular occlusions
The image sequence can show areas of poor retinal blood flow and where fluid is leaking.
Inflammation and unexplained findings
Characteristic staining and leakage patterns help us assess some inflammatory or vascular changes.
Step by step
This is how the angiography is created.
Before the test, we discuss allergies, medicines, pregnancy and relevant previous conditions.
Dilating the pupils
Eye drops dilate the pupil so we can obtain clear images of the retina and its blood vessels.
Inserting an intravenous line
The water-soluble dye is given through a vein in your arm.
Taking a sequence of images
The camera photographs both eyes at precisely timed intervals.
Evaluate Phases
We compare delayed filling, blockages, leakage and staining patterns with OCT and examination findings.
Understanding the results
FLA and OCT answer different questions.
Angiography mainly shows blood flow and dye leakage. OCT shows the structure of retinal layers and fluid within the tissue. Together, they often provide the information needed for a decision.
Temporary nausea is possible, and the skin and urine may look yellowish for a few hours. Allergic reactions are rare; severe reactions are very rare. We therefore carry out the examination with appropriate preparation and monitoring.
Well prepared
How to prepare for your visit
- Current list of medicines
- Tell us about known allergies or previous reactions to dyes
- Indicate pregnancy or breast-feeding in advance
- Arrange a lift home, as your pupils will usually be dilated
Frequently asked questions
Clear, concise answers.
Does the dye injection hurt?
The needle feels similar to a blood test. You may briefly feel warm or nauseous during the injection.
Is fluorescein an X-ray contrast agent?
No. It is a fluorescent dye; the images use light, not X-rays.
Why is an OCT scan also performed?
The two tests complement each other: angiography shows blood vessel activity and leakage, while OCT shows retinal layers and fluid-filled spaces.
Medical note
This page cannot replace an eye examination. Your symptoms, history and findings determine which tests are useful and how their results should be interpreted.
Medical basics
Sources and further information.
Related topics
All non-surgical eye care services