Fluorescein angiography is a test to examine blood vessels in the retina, choroid, and iris of the eye. A special dye is injected into a vein in the arm and pictures are taken as the dye passes through the blood vessels in the eye. If the eye care professional (opthalmologist) suspects a patient has a disorder such as wet age-related macular degeneration (wet AMD), the patient may have fluorescein angiography. The resultant photos help evaluate leaking blood vessels and determine whether they can be treated.