Diagnostic Tests

Indocyanine Green Angiography

The choroid is a vascular –rich layer below the retina. Indocyanine gren angiography is an imaging procedure to examine the choroid in particular and at the same time, the vascular structure of the retina, enabled by enlarging the pupils with drops and administering inocyanine dye into the arm.


Photographing starts in the first minute and including those taken after 30 minutes, they are recorded. It should not be applied to pregnant patients or those with an iodine allergy. Very rarely, there may be serious side-effects from an allergic reaction to the medication


Figure 1. Indocyanine green angiography of a healthy individual (left) and a patient diagnosed with choroidal granuloma at our hospital (right). The lesion associated with granuloma is hypofluorescent throughout the indocyanine green angiography.