The edition · Geriatrics
Uncorrected poor vision linked to more dementia in mild cognitive impairment
People with MCI whose vision impairment had been corrected, or who had none, had lower dementia risk than those left uncorrected; yoga's balance benefit shrinks under scrutiny; dietary choline tracks with cognition; and animal-assisted therapy eases late-life depression.
The edition in brief
A JAGS analysis of people with mild cognitive impairment found that those without vision impairment, and those whose impairment had been corrected, had a lower risk of progressing to dementia than people with uncorrected impairment, particularly under age 75. A meta-analysis of 21 yoga studies in 1,471 older adults found apparent benefits for dynamic balance and leg strength were not robust after adjustment for publication bias, while quality-of-life gains held and static balance did not improve. A dose-response meta-analysis of nine cohorts (218,378 people) linked higher dietary choline with lower odds of cognitive decline (OR 0.67), with the lowest risk around 350–400 mg a day. A meta-analysis of 20 studies found animal-assisted interventions improved depressive symptoms (SMD −0.45) and cognition in older adults, on low-certainty evidence, with no effect on anxiety or loneliness.
Yoga for older adults: quality of life holds, balance benefit fades
Support yoga for wellbeing, but use structured balance and strength training when the goal is preventing falls.
Dietary choline linked to less cognitive decline, with a sweet spot near 350–400 mg
Reasonable to encourage choline-containing foods in older adults; there is no case for supplements.
Animal-assisted interventions eased depression in older adults
Animal-assisted programmes are a reasonable add-on for low mood in older adults in care settings, not a substitute for treatment.
Check hearing and vision at every memory assessment
Correct what can be corrected — hearing and sight — before and alongside any cognitive diagnosis.
In mild cognitive impairment, correcting poor vision is linked to lower dementia risk
Make vision assessment and correction part of routine care for mild cognitive impairment.
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