Optical coherence tomography angiography (OCTA) has become increasingly established as a diagnostic procedure in clinical practice in recent years. In the field of medical retina in particular, it serves as a useful aid to the morphological assessment of vascular diseases such as neovascular age-related macular degeneration and diabetic retinopathy. Technically speaking, it is a further development of optical coherence tomography (OCT) and therefore offers the advantage of being non-invasive. Even though other imaging modalities still need to be used for certain clinical matters, OCTA offers a suitable alternative to invasive procedures in some situations or can be a helpful supplement in cases of unclear findings. In addition, OCTA has led to a better understanding of the pathophysiology and course of vascular diseases in a scientific context. Recent developments have already reduced or eliminated some of the limitations of OCTA and further improvements for use in clinical practice can be expected in the future.
