Definition

A procedure that uses a special dye and camera to look at the blood vessels in the back of the eye. A yellow dye called fluorescein is injected into a vein and travels throughout the body, including the blood vessels in the eye. The dye causes the blood vessels to light up when a picture is taken with a special camera. Fluorescein angiography may be used to check for damaged, blocked, or leaking blood vessels in the eye, swelling in the retina, and other eye problems, including macular degeneration and a type of eye cancer called intraocular melanoma. It may also be used to see how well certain eye treatments are working.