Understanding Fluorescein Angiography and When It Is Used

Fluorescein angiography is a diagnostic test used to get a detailed look at the blood vessels within the retina, and it plays a particularly important role in diagnosing and monitoring conditions like wet macular degeneration, diabetic retinopathy and retinal vein occlusion.The test involves injecting a small amount of fluorescent dye into a vein, usually in https://www.retina-eye.co.uk/ the arm, which then travels age-related macular degeneration clinic through the bloodstream and into the blood vessels of the eye. A specialised camera captures a rapid series of photographs as the dye moves through the retinal circulation, highlighting any areas of leakage, blockage or abnormal vessel growth that might not be visible through standard examination alone.Most people tolerate the test well, though some notice a warm sensation as the dye is injected, and skin or urine may appear slightly yellow for a short time afterwards as the dye is naturally processed by the body. Mild nausea is possible but usually passes quickly.Because it provides such detailed information about blood flow within the retina, fluorescein angiography often helps guide treatment decisions, particularly around whether and where laser treatment or injections might be beneficial.