The advent of optical coherence tomography angiography (OCTA) is one of the cornerstones of fundus imaging. Essentially, its mechanism depends on the visualization of blood vessels by using the flow of erythrocytes as an intrinsic contrast agent. Although it has only recently come into clinical use, OCTA has become a non-invasive diagnostic tool for the diagnosis and follow-up of many retinal diseases, and the integration of OCTA in multimodal imaging has provided a better understanding of many retinal disorders. Here, we provide a detailed overview of the current applications of OCTA technology in the diagnosis and follow-up of various retinal disorders.
Keywords: age-related macular degeneration; diabetic retinopathy; idiopathic macular telangiectasia type 2; macular neovascularization; optical coherence tomography angiography; pachychoroid neovasculopathy; polypoidal choroidal vasculopathy; retinal artery occlusion; retinal vein occlusions.