What Really Happens During a Fluorescein Angiography Test?
A Fundus Fluorescein Angiography (FFA) test uses a fluorescent dye and a special camera to film how blood actually flows through your retina - not just how it looks. At Save Sight Centre, this test helps our doctors see leaking, blocked, or abnormal blood vessels behind conditions like diabetic retinopathy and macular degeneration, often before they threaten your vision.
Illustrative FFA image - bright vessels show dye-filled retinal blood flow against a dark background.
What Is a Fundus Fluorescein Angiography (FFA) Test?
A quick, layman's explanation before your visit.
Dye-Based, Not Just a Photo
A fluorescent dye lights up under blue light, tracing blood flow through the retina in real time.
A Sequence, Not a Snapshot
Dozens of images are taken as the dye moves, capturing early, mid and late phases of blood flow.
Guides Real Treatment Decisions
Findings directly shape decisions on laser treatment, injections, or further monitoring.
Why Is an FFA Test Performed?
Eye specialists at Save Sight Centre recommend an FFA test in the following situations:
You have diabetic retinopathyTo map leaking or blocked vessels and plan laser or injection treatment.
Suspected wet AMDTo confirm abnormal blood vessel growth (choroidal neovascularisation) beneath the retina.
Retinal vein or artery occlusionTo identify exactly which vessels are blocked and how much retina is affected.
Unexplained macular oedemaTo locate the source of fluid leakage causing swelling.
Inflammatory or infectious retinal diseaseTo assess vascular involvement in uveitis or related conditions.
Suspected intraocular tumourTo characterise blood supply patterns that support diagnosis.
Monitoring treatment responseTo check how well anti-VEGF injections or laser therapy are working.
Planning laser photocoagulationTo precisely map treatment areas before the procedure.
How Is the FFA Test Done? Step by Step
Save Sight Centre walks you through three phases: before, during, and after.
History, Consent & Dilation
- Share allergies, medications, and pregnancy status
- Sign informed consent after questions are answered
- Pupils are dilated with drops for clear imaging
Dye Injection & Imaging
- Fluorescein dye injected into a vein in your arm
- A brief warm flush or metallic taste is normal
- Camera captures rapid images for 10-20 minutes
Recovery & Results
- Yellow-orange skin/urine tinge clears within 24 hours
- Vision stays blurry for a few hours from dilation
- Results are explained the same day at Save Sight Centre
What Do the Pictures Taken During an FFA Look Like?
As the dye travels through your retina, Save Sight Centre captures three distinct phases:
Early (Arterial) Phase
Dye first appears in the retinal arteries, lighting up the main vessels closest to the optic disc.
Mid (Arteriovenous) Phase
Both arteries and veins are now visible, showing the full pattern of blood flow across the retina.
Late Phase
Any leakage shows up here as a bright, spreading glow (hyperfluorescence) - a key sign doctors look for.
These are illustrative representations. Actual FFA images are reviewed by Save Sight Centre's retina specialist to identify leakage, blockage, or abnormal vessel growth specific to your eyes.
What Are the Side Effects of Fluorescein Angiography?
Most effects are mild and temporary; serious reactions are rare.
Warm Flushing
A brief warm sensation as the dye spreads through your bloodstream, lasting just seconds.
Mild Nausea
Some patients feel briefly queasy right after the injection - it usually passes quickly.
Yellow Skin & Urine
A temporary tinge as your kidneys filter out the dye over the next 24 hours.
Rare Allergic Reaction
Less than 1% of patients have a hypersensitivity reaction; Save Sight Centre is equipped to manage this immediately.
Who Should Not Undergo an FFA Test?
Let Save Sight Centre's team know in advance if any of the following apply to you.
- You are pregnant or think you might be
- You have a known allergy to fluorescein dye
- You have impaired kidney function
- You have a history of severe allergic reactions to contrast dyes
- You have asthma or another significant respiratory condition
In these cases, Save Sight Centre can discuss non-invasive alternatives such as OCT Angiography, which don't require an injected dye.
What Are the Alternatives to Fluorescein Angiography?
Save Sight Centre may recommend these when FFA isn't suitable or a different view is needed.
OCT Angiography (OCTA)
A non-invasive, dye-free scan showing retinal blood flow - suitable during pregnancy or with dye allergies.
Indocyanine Green Angiography (ICGA)
Uses a different dye to visualise the deeper choroidal blood vessels beneath the retina.
Fundus Photography
Captures a static, surface-level image of the retina - useful for documentation, though without flow detail.
How Much Does a Fluorescein Angiography Cost in Delhi?
Save Sight Centre keeps Fluorescein Angiography pricing simple and transparent - no hidden charges.
| Doctor | Consultation Includes | Fee |
|---|---|---|
| Fundus Fluorescein Angiography | Dye injection + sequential retinal imaging + specialist review | ₹5,000 |
Why Choose Save Sight Centre for Your FFA Test?
For over 15 years, our team in Adarsh Nagar has used fluorescein angiography to turn a vague diagnosis into a precise treatment plan - pinpointing exactly which vessels are leaking or blocked, rather than guessing from a single photo.
We've performed and interpreted angiography for patients across a wide range of retinal conditions in Delhi NCR, so when your images show something unusual, our doctors can tell you quickly what it means and what happens next.
See Dr. Rajeev Jain's full profile →
See Dr. Shuchi Gupta's full profile →
Frequently Asked Questions About Fluorescein Angiography
Straight answers to the most common questions our patients search for - including a few that general guides often miss.
You'll feel a quick pinch as the needle goes into a vein in your arm, similar to a routine blood test, followed by a brief warm flushing sensation as the dye spreads through your body. Save Sight Centre's team will guide you through each moment so nothing feels unexpected.
Save Sight Centre's fundus camera typically captures dozens of images per eye over the 10-20 minute imaging window, covering the early, mid, and late phases as the dye moves through your retinal blood vessels. This sequence is what reveals leakage or blockage over time, not just a single snapshot.
No, the yellow-orange tinge to your skin and urine is temporary and clears up within 24 hours as your kidneys filter out the dye. Save Sight Centre recommends drinking plenty of water afterward to help your body clear it a little faster.
It's best not to. Your pupils will still be dilated from the drops used before the test, causing blurred near vision and light sensitivity for a few hours. Save Sight Centre recommends arranging a ride home and bringing sunglasses for comfort.
Yes, fluorescein angiography is commonly performed on patients with diabetes, since diabetic retinopathy is one of the most frequent reasons Save Sight Centre recommends this test. It does not affect blood sugar levels, but let your doctor know your diabetes history beforehand.
FFA uses fluorescein dye to image the retina's surface blood vessels, while ICG (Indocyanine Green Angiography) uses a different dye that shows the deeper choroidal vessels beneath. Save Sight Centre may recommend ICG in addition to FFA for certain deeper retinal conditions.
No, they show different things. FFA maps how blood is actually flowing through your retinal vessels using dye, while OCT shows the physical, layer-by-layer structure of your retina without any dye. Save Sight Centre often uses both together for a complete picture.
At Save Sight Centre, your images are reviewed by our retina specialist and results are usually explained on the same day, though complex cases may need a short follow-up discussion once all images have been fully analysed.
Fluorescein angiography is generally not recommended during pregnancy due to potential risks to the developing baby. Save Sight Centre will discuss safer alternatives, such as OCT or OCT angiography, if you are pregnant and need retinal evaluation.
Most patients only experience mild, temporary effects like brief nausea, warm flushing, or yellow discolouration of the skin and urine. Serious allergic reactions are rare, occurring in less than 1% of cases, and Save Sight Centre's team is trained and equipped to manage them immediately if they occur.
Fluorescein angiography pricing depends on the extent of imaging needed and whether it's combined with other tests. Save Sight Centre's team will confirm the exact cost for your specific case before your appointment - please call or WhatsApp us for a quote.
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