Indocyanine Green Angiography

Indocyanine green angiography (ICGA) is an eye test used to assess blood circulation in the retina and choroid. The test involves injecting a contrast dye called indocyanine green into a vein in the arm. The dye binds to blood proteins and circulates through the blood vessels of the retina and choroid.

It is an invasive test because it requires access to the bloodstream. It provides valuable information to your doctor, supporting the early diagnosis of disease and the preservation of sight.