Eye health ingredients are nutrients and compounds that support and maintain vision and overall eye health. Key ingredients include vitamins A, C, and E, which act as antioxidants to protect eye cells; lutein and zeaxanthin, which filter harmful blue light and improve visual function; omega-3 fatty acids, which support retinal health and reduce the risk of dry eyes; and zinc, which aids in the metabolism of essential eye nutrients. These ingredients are found in various foods and supplements and are crucial for preventing age-related eye conditions like macular degeneration and cataracts.