Optical Coherence Tomography Angiography – A General View

Abstract

Optical coherence tomography angiography (OCTA) is a non-invasive angiography type without a contrast agent, which provides a detailed assessment of the retinal and choroidal vasculature and visualisation of blood flow by detecting motions of erythrocytes, using serial optical coherence tomography B-scans. OCTA has been thoroughly investigated during imaging of the microvasculature in various retinal and choroidal vascular and tumoural diseases that affect the central macula. It has some important advantages and some acceptable disadvantages.