This book offers a comprehensive overview of neovascular glaucoma (NVG), which is an extraordinarily aggressive type of secondary glaucoma that has often been discussed as an afterthought rather than the focal subject in glaucoma reference books. NVG is considered an end stage complication in patients with certain underlying retinal diseases, most commonly diabetic retinopathy and retinal vein occlusions. Historically, NVG has been one of the most difficult types of glaucoma to manage, with a high failure rate for traditional glaucoma surgery, and often progression of the underlying retinal disease despite “standard of care” treatment.