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Correlation Between Vision and Cognitive Function in the Elderly: A Cross-Sectional Study.

Oriel Spierer1, Naomi Fischer, Adiel Barak

  • 1From the Department of Ophthalmology, Tel Aviv Sourasky Medical Center, Sackler Faculty of Medicine (OS, NF, AB); and Ophthalmic Technologies Laboratory, Goldschleger Eye Research Institute, Tel Aviv University, Tel Hashomer, Israel (MB).

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This summary is machine-generated.

Good vision and wearing reading glasses are linked to better cognitive function in older adults. This suggests glasses may protect against cognitive decline from vision loss.

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Area of Science:

  • Ophthalmology
  • Gerontology
  • Neuroscience

Background:

  • Visual impairment in the elderly is associated with cognitive decline, dementia, and Alzheimer's disease.
  • The relationship between vision and cognitive function in older adults remains incompletely understood.

Purpose of the Study:

  • To investigate the correlation between near visual acuity (VA), refractive error, and cognitive status in individuals aged 75 and older.

Main Methods:

  • A cross-sectional study included 190 subjects (mean age 81.6 years).
  • Near visual acuity and refraction were measured.
  • Cognitive function was assessed using a version of the mini-mental state examination for the visually impaired (MMSE-blind).

Main Results:

  • Good near visual acuity (≤J3) was significantly associated with higher MMSE-blind scores (OR=3.18, P=0.001), even after adjusting for covariates.
  • Wearing reading glasses correlated significantly with better cognitive function (OR=2.14, P=0.016) after adjustments.
  • A trend suggested myopia might be associated with better cognitive performance (r=-0.123, P=0.09).

Conclusions:

  • Good visual acuity and the use of corrective lenses, particularly reading glasses, appear to be associated with better cognitive function in the elderly.
  • Reading glasses may act as a protective factor against cognitive deterioration linked to age-related visual sensory deprivation.
  • Further research is needed to clarify the association between myopia and cognitive function.