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News for Healthier Living
Older People with Alcohol Use Disorder May Underestimate Their Impairment In Visual Processing When Drinking, Raising Their Risk of Accidents
Older adults' visual functions-- eye movement reaction time, speed, and accuracy--are acutely impaired by alcohol, and those with chronic alcohol use disorder (AUD) are not immune to these impairments when imbibing. The study in Alcohol: Clinical & Experimental Research is the first to examine alcohol's acute effects on eye movements, pupil size, and self-perception of impairment in middle-aged to older adults with AUD versus a control group of those with lifetime light drinking. Alcohol disrupts eye movement and pupil dilation, resulting in delayed visual reactions and reduced accuracy. Many believe that those with longer-term excessive drinking have built up tolerance and are protected against eye movement impairment. While this study showed that older drinkers with chronic AUD (vs. light drinkers) had less impairment in visually tracking an object that moves predictably, they were equally impaired in eye movements that require quick adjustments to randomly appearing objects. The perso
January 29, 2025
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