The Silver Book is a unique almanac of references that the Alliance has compiled to spotlight the impact of chronic disease on our aging population and health care system, and the significant impact medical breakthroughs will have on future health care use and expenditures. The Vision Loss Volume looks at vision loss generally, and highlights data on age-related macular degeneration (AMD), diabetic retinopathy, and glaucoma--which along with cataract are the eye diseases that disproportionately affect older Americans.