Objectively measured far vision impairment and sarcopenia among adults aged ≥ 65 years from six low- and middle-income countries

Lee Smith, Guillermo F. López-Sánchez, Louis Jacob, Yvonne Barnett, Shahina Pardhan, Nicola Veronese, Pinar Soysal, Mark A. Tully, Trish Gorely, Jae Il Shin, Ai Koyanagi

Research output: Contribution to journalArticlepeer-review

Abstract

Background: There are currently no studies on visual impairment and sarcopenia. We investigated the cross-sectional association between objectively measured far vision impairment and sarcopenia in a nationally representative sample of older adults aged 65 years and over from six low- and middle-income countries (LMICs).
Methods: Cross-sectional, community-based data from the study on global ageing and adult health (SAGE) were analyzed. Far vision acuity was measured using the tumbling E LogMAR chart and classified as: no vision impairment (6/12 or better); mild vision impairment (6/18 or better but worse than 6/12); moderate vision impairment (6/60 or better but worse than 6/18); severe vision impairment (worse than 6/60). Sarcopenia was defined as having low skeletal muscle mass and either a slow gait speed or a weak handgrip strength. Associations were assessed with multivariable logistic regression.
Results: Fourteen thousand five hundred and eighty five individuals aged ≥ 65 years were included in the analysis [mean (SD) age 72.6 (11.5) years; 54.1% females]. After adjustment for multiple potential confounders, compared to those with no vision impairment, the OR (95% CI) for sarcopenia in those with mild, moderate, and severe vision impairment were 1.10 (0.87–1.40), 1.69 (1.25–2.27), and 3.38 (1.69–6.77), respectively. The estimates for females and males were similar.
Conclusions: The odds for sarcopenia increased with increasing severity of far vision impairment among older people in LMICs. The mere co-occurrence of these conditions is concerning, and it may be prudent to implement interventions to address/prevent sarcopenia in those with far vision impairment through the promotion of physical activity and appropriate nutrition.

Original languageEnglish
JournalAging Clinical and Experimental Research
Early online date28 Mar 2021
DOIs
Publication statusE-pub ahead of print - 28 Mar 2021

Keywords

  • Far vision impairment
  • Low- and middle-income countries
  • Older adults
  • Sarcopenia
  • Visual impairment

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