Dye-Based Angiography
摘要
The evaluation of retinal disorders and retinal imaging has evolved from using crude instruments in fundoscopy to dye-based imaging techniques. At present, high-resolution imaging of retinal and choroidal vessels is possible with modern, high-quality fundus cameras, digital imaging, and photographic filters. Fluorescein angiography (FA) is an efficient tool for evaluating retinal circulation, and indocyanine green angiography (ICGA) offers a more precise resolution of the choroidal circulation. In this chapter, we will highlight the basics of retinal imaging, equipment, techniques of FA and ICGA, image analysis, and their clinical implications.