ServicesFluorescein Angiography/Indocyanine Green (FFA/ICG)

Fluorescein Angiography/Indocyanine Green (FFA/ICG)



1. What is this service/procedure? Can you give me a simple ONE sentence description?

FFA is a diagnostic procedure which uses a rapid sequence of photos to examine the blood vessels in the eye. This is done following intravenous injection of Fluorescein dye. ICG is a diagnostic procedure which uses a rapid sequence of photos to examine the blood vessels in the eye. This is done following intravenous injection of Indocyanine green dye.

2. Who is this service/procedure for, who needs it, who will benefit from it?

Patients who have retinal problems that require diagnosis.

3. What is the purpose of this service/procedure?

It confirms diagnosis and aids the development of a treatment plan.




4. What should the patient expect to happen during this service/procedure? What is the experience going to be like?

Note the following steps: <ol> <li> On the day of the procedure, the patient is administered THREE rounds of dilating drops to both eyes. After the first round of drops, the patient needs to wait for 10 minutes, before receiving the second set of drops. After a further wait of 10 minutes, the patient receives a third set of drops. (The onset of action for these drops is approximately 30 minutes.) </li> <li> Once well dilated, the patient is taken into a separate room to begin the procedure. </li> <li> The patient is seated at the fundus camera. </li> <li> A cannula is inserted into a vein on the back of the patient’s hand while the patient is seated at the fundus camera. </li> <li> The patient is instructed how to position himself/herself at the camera. A preliminary set of photographs is taken using several filters (before injection of the fluorescein dye). </li> <li> The anesthetist then injects 5ml of 10% Sodium Fluorescein dye, through the cannula. Once the dye is injected, the ophthalmic photographer takes another series of pictures with flash photography. During this time, the patient needs to keep his/her eyes wide open and follow the Ophthalmic Photographer’s instructions. </li> <li> The duration of this test is approximately 15-20 minutes. However, patients need to stay in clinic for at least 2 hours after the procedure is completed. During this period, they will be monitored for any reactions to the dye and will also have a consultation with the Ophthalmologist who will discuss the findings of the examination and, if needed, treatment options. </li> <li> The Ophthalmic Assistant, under direction from the Ophthalmologist, prepares a report of the findings and a copy of the photographs taken, to be given to the patient. </li> </ol>



5. How long does this procedure usually take?

This procedure typically takes 15-20 minutes.



6. Is this service/procedure conducted with local or general anesthesia?

Typically, no anesthesia is used for this procedure.



7. What should you (the patient) do BEFORE this service/procedure?

Dilation impairs your vision for 4 to 5 hours. Do not plan on driving for 4-5 hours after these tests. Come with a driver. Plan on staying at the clinic for at least 2 hours after the procedure is completed.



8. What should you (the patient) do AFTER this service/procedure?

Patients need to stay in clinic for at least 2 hours after the procedure is completed. During this period, patients will be monitored for any reactions to the dye and will also have a consultation with the Ophthalmologist who will discuss the findings of the examination and, if needed, treatment options.



9. Is there anything else the patient needs to do in preparation for this service/procedure?

This procedure is to be done with the patient fasting (nothing to eat or drink at least 6 hours before the procedure).



10. Who will carry out this service/procedure?

This procedure is usually done by an ophthalmic assistant or an ophthalmic technician, and an anesthetist.





Locations Offering this Service



TEH St. Augustinearrow_forward
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TIMT Building Corner Warren Street and Private Road, St. Augustine.