A new study reveals that the brain’s ability to process visual information may decline more sharply with age than previously understood, challenging long-held assumptions about cognitive aging. Researchers found that older adults often struggle with rapid visual tasks, even when their overall cognitive function appears stable, suggesting a hidden vulnerability in visual processing that could impact daily activities. The findings highlight a potential gap between general mental sharpness and specific perceptual skills as people age, raising questions about how these changes might influence independence and quality of life. Experts say the results could prompt a rethinking of how visual health is monitored in aging populations.