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What is the leading cause of functional blindness in the elderly?

According to the CDC, age-related macular degeneration (AMD) is the leading cause of vision loss and blindness for Americans aged 65 and older. This makes AMD the most common answer to the question, "What is the leading cause of functional blindness in the elderly?", as it significantly impairs the central vision needed for daily tasks. Regular eye exams are crucial for early detection and management.