It is the taking of photographs of the retina (fundus) with contrast injection intra-venous (fluorescein sodium - does not contain iodine) and dilation of the pupil with eye drops. Even being an invasive procedure, it needs to inject drugs intra-venous, has a satisfactory margin of safety, and rare adverse reactions, but allergic reactions may occur.
There will always be a period of elimination of contrast in the urine of which will be dark yellow for 12 to 24 hours. The skin also takes on a yellowish tint during the period of disposal.
USE: To evaluate the retinal circulation and NO and anatomical changes of the retina.