This book contains the proceedings of the XIX International Symposium on Retinal Degeneration. A majority of those who spoke and presented posters at the meeting contributed to this volume. The blinding diseases of inherited retinal degenerations have no treatments, and age-related macular degeneration has no cures, despite the fact that it is an epidemic among the elderly, with 1 in 3-4 affected by the age of 70. The RD Symposium focused on the exciting new developments aimed at understanding these diseases and providing therapies for them. These retinal degeneration symposia are known by most as the "best" and "most important" meetings in the field. The volume presents representative state-of-the-art research in almost all areas of retinal degenerations, ranging from cytopathologic, physiologic, diagnostic and clinical aspects; animal models; mechanisms of cell death; candidate genes, cloning, mapping and other aspects of molecular genetics; and developing potential therapeutic measures such as gene therapy and neuroprotective agents for potential pharmaceutical therapy. We anticipate that the excitement of those working in the field and those afflicted with retinal degenerations is reflected in the volume.