The document discusses several studies related to age-related macular degeneration (AMD) and eye health. It summarizes findings that diets high in omega-3 fatty acids and fish consumption are associated with lower risks of advanced AMD. It also discusses the Age-Related Eye Disease Study (AREDS) which found that a formulation including vitamins C and E, beta-carotene, zinc and copper can reduce risks of advanced AMD. However, beta-carotene is not recommended for smokers due to increased cancer risks.