2025 Retinal Imaging 1

Fluorescein dye absorbs blue light (465–490 nm) and emits yellow-green fluorescence (520–530 nm)

• TRUE

• FALSE

Fluorescein dye is small and water-soluble, which allows it to leak through fenestrated choroidal vessels

• TRUE

• FALSE

Indocyanine green’s high protein binding prevents it from leaking freely through the choroidal vasculature

• TRUE

• FALSE

Background choroidal fluorescence (choroidal flush) in fluorescein angiography occurs because fluorescein leaks through the large choroidal vessels

• TRUE

• FALSE

The large overlap between absorption and emission spectra of indocyanine green leads to strong fluorescence emission and minimal reabsorption

• TRUE

• FALSE

The large overlap between absorption and emission spectra of indocyanine green leads to strong fluorescence emission and minimal reabsorption

• TRUE

• FALSE

Fluorescein angiography is more sensitive than indocyanine green for detecting polypoidal choroidal vasculopathy

• TRUE

• FALSE

Breastfeeding is an absolute contraindication to fluorescein angiography

• TRUE

• FALSE

ICG dye contains iodine and is contraindicated in patients with a history of iodine allergy

• TRUE

• FALSE

The most common side effect of fluorescein angiography is nausea and vomiting

• TRUE

• FALSE