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Indocyanine Green Angiography

Indocyanine green angiography is a diagnostic test that involves taking photographs of the blood vessels in the eye with the help of a contrast dye. Indocyanine is a green dye that works with infrared light and is visualized with a special digital camera. The images produced by this test help doctors evaluate the retina and diagnose or monitor problems such as macular degeneration, abnormal vessel growth, macular edema, certain types of retinal detachment and tumors.

During these exams, the patient’s pupils are dilated with eye drops. A few photographs are then taken with a special ophthalmic camera. Next, the contrast dye is injected, usually into a vein in the patient’s arm. The dye travels up to the eye within a few seconds and “lights up” the blood vessels for the camera. Once the dye is injected, multiple photographs are taken.

These tests are considered safe for most patients, although it is possible to have a reaction to the dye and develop itching, nausea, or a rash. These symptoms can usually be managed through oral medication if severe. Patients with an iodine or shellfish allergy should inform the doctor since indocyanine green is contraindicated in these cases.

ICG image of Polypoidal Choroidal Vasculopathy

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Schedule an Appointment with a Mid Atlantic Retina Specialist

Browse through the articles on this page to explore a wide range of topics related to retinal health. Visit other pages on our site, including our retinal disease page, for additional information as well.

Mid Atlantic Retina is made up of top Wills Eye Physicians, known for being the best retina doctors in the country. To seek further retina information and personalized care from a board-certified retinal specialist, make an appointment at one of our convenient locations in the Pennsylvania, Delaware, or the New Jersey area. Our specialists offer the most advanced treatments for adult and pediatric retinal diseases, and we pride ourselves on providing all of our patients with the highest level of care. This includes efficient diagnostics and the latest in treatments and procedures, with state-of-the-art services tailored to your needs.

Contact us today to schedule your first appointment.