Abstract
Optical coherence tomography angiography (OCT-A) is an advanced
noninvasive retinal blood flow imaging technique. It uses motion-contrast imaging to
obtain high-resolution volumetric blood flow information to enhance the study of
retinal and choroidal vascular pathologies. OCT-A can obtain detailed images of the
radial peripapillary network, the deep capillary plexus (DCP), the superficial capillary
plexus (SCP) and the choriocapillaris. In addition, compared to fluorescein
angiography (FA), this technique does not require the use of injected dye. This chapter
aims to present OCT-A technology and clarify its terminology and limitations. The
discussion summarizes the potential application of the technology in different retinal
and choroidal diseases.
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