Calcein angiography: a preliminary report on an experimental dye

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Abstract
Calcein is a new experimental dye for fundus angiography. Injected intravenously, calcein shares most of the characteristics of sodium fluorescein, but it also has some advantages over fluorescein because it lasts longer in the circulatory system. Calcein may be useful in experimental and clinical angiography of the fundus. This study gives the results of angiograms taken with a standard fundus camera after calcein injection.