Optical Coherence Tomography Angiography

Abstract

Optical coherence tomography angiography (OCT-A) is a relatively novel technology that has enabled rapid, noninvasive, high-resolution, and depth-resolved visualization of vasculature within the eye. As it has become increasingly utilized clinically for chorioretinal disease, glaucoma, neuro-ophthalmology, and the anterior segment, a familiarity with the technology and its applications is increasingly important for ophthalmologists. This chapter outlines a brief history of optical coherence tomography (OCT) and OCT-A, reviews technical aspects of OCT-A, gives a brief overview of currently available OCT-A devices, its current applications in ophthalmology, and known limitations of the technology.