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ICG Angiography
ICG (Indocyanine Green) Angiography is a diagnostic procedure often used in conjunction with Fundus Photography. A small dose (2cc) of iodine-based contrast dye is injected into a vein in the arm or hand.  Photographs are then obtained by using a low-level infrared light, which is not harmful to the patient. This procedure highlights the vascular layer underneath the retina, called the choroid. This test differs from a Fluorescein Angiography by allowing the physician to see leaks under a layer of blood. It can be used for evaluating the blood vessels in the choroid, retina, and iris.




Frames from an ICG angiogram

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