Vision Test May Predict Dementia Years in Advance

A study involving 8,623 participants in Norfolk, England, suggests that a loss of visual sensitivity can predict dementia up to 12 years before diagnosis. The research indicates that visual issues, such as difficulty in recognizing shapes and controlling eye movements, may be early indicators of cognitive decline due to Alzheimer's disease. These findings highlight the potential of vision tests as early diagnostic tools for dementia, although widespread use is limited by the cost and complexity of eye-tracking technology.