Optical coherence tomography (OCT) angiography and structural OCT are, at the present, time necessary for understanding pathogenesis, clarifying morphology and structure of retina and choroid, and refining diagnosis and management of ocular conditions. OCT imaging evolution presents us with an exponential increase of the quantity of data. OCT assessment and interpretation activity encompass both a technical and an intellectual aspect. This book consists of 33 chapters, which include technology