There are two types of dye: sodium fluorescein, which was the first to be used, and indocyanine green.
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Link to weiqing Two dyes are used because they have different properties and uses. There are two types of retinal blood circulation: retinal circulation and choroidal circulation, which also nourishes the retina. Sodium fluorescein is the dye used to study retinal circulation, while indocyanine green is used for choroidal circulation. Are you interested in learning more about Indocyanine Green Angiography? Contact us today to secure an expert consultation!