This book focuses on OCT angiography. Optical coherence tomography angiography (OCT angiography, OCTA) is a new and noninvasive diagnostic tool in detecting changes in microvascular circulation. It is based on two innovative technologies such as split spectrum amplitude decorrelation angiography (SSADA) algorithm and motion correction technology (MCT) protocol. This book consists of 24 chapters, which include choroidal neovascularization, dry age-related macular degeneration, wet age-related macular degeneration, central serous retinopathy, polypoidal choroidal vasculopathy, idiopathic polypoidal choroidal vasculopathy, diabetic retinopathy, degenerative myopia, retinal artery occlusion, retinal vein occlusion, synchysis scintillans (cholesterolosis), posterior vitreous detachment, vitreomacular traction syndrome, macular pseudohole, lamellar macular hole, retinal detachment, toxoplasmic chorioretinitis, albinism, x-linked juvenile retinoschisis, radiation retinopathy, and optic neuritis and papilledema. This book is a story of retinal disease and glaucoma through the lens of OCT angiography. The special attention in the book has been given to angioanalytics, analysis of the dynamics of development and drying of new membranes. Both, the beginners and the experienced ophthalmologists may benefit from the content of this book as it offers many aspects, from the basics to more complicated OCT angiography analytics.