Relationship Between Visual Functions and Independence in ADLs and IADLs Among Community-Dwelling Older Adults.
Yeonju Jin, Kimberly Hreha, Ickpyo Hong
PMID 40423652WHAT IT FOUND
Contrast sensitivity predicted independence in dressing, toileting, bathing, laundry, shopping, cooking, and medication management.
Near vision predicted independence in eating and most other IADLs. Distance vision predicted independence only in shopping and money management. Screen contrast sensitivity, not just acuity.
Key findings
01Higher contrast sensitivity was significantly associated with independence in dressing, toileting, and bathing.
02Near visual acuity was significantly associated with independence in all IADLs except self-management of medications.
03Distance visual acuity was significantly associated with independence only in shopping and money management.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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What it does not show
The cross-sectional design prevents determining whether vision loss causes functional decline or if other factors are responsible. The study did not account for the use of coping strategies, such as adjusting lighting, which may have masked the true impact of vision impairment on daily tasks. The dataset did not include information on specific eye conditions like glaucoma or hemianopsia, limiting the understanding of the underlying causes of visual impairment.
Declared interests
The authors declare no conflicts of interest. The study used publicly available data from the National Institute on Aging.
The easy way to misread this
Do not assume that normal distance and near visual acuity means a patient has adequate vision for daily tasks. Contrast sensitivity was a stronger predictor of independence in many ADLs and IADLs, and a patient can have 20/20 acuity but still struggle with bathing or cooking due to poor contrast detection.