ABSTRACT
INTRODUCTION Fluorescein angiography (FA) has revolutionized the diagnosis of retinal disorders (1,2). However, there are certain limitations to this technique. Overlying hemorrhage, pigment, or serosanguineous fl uid can block the underlying pathologic changes and prevent adequate visualization by FA. Indocyanine green (ICG) is a Food and Drug Administration-approved tricarbocyanine dye that has several advantageous properties over sodium fl uorescein as a dye for ophthalmic angiography. The clinical usefulness of indocyanine green angiography (ICGA) in the past has been limited by our inability to produce high-resolution images. However, enhanced high-resolution ICG angiograms can now be obtained owing to the technological advance of coupling digital imaging systems to ICG cameras (3,4). Thus, digital ICGA fi nally allows the theoretical advantages of ICG as an ophthalmic dye to be realized.
