Using NEI-VFQ-25 to Identify Visual Impairment in Elderly
Author Information
Author(s): Owen Christopher G, Rudnicka Alicja R, Smeeth Liam, Evans Jennifer R, Wormald Richard PL, Fletcher Astrid E
Primary Institution: Division of Community Health Sciences, St George's, University of London
Hypothesis
Is the NEI-VFQ-25 a useful tool in identifying visual impairment in an elderly population?
Conclusion
The NEI-VFQ is a useful instrument for measuring visual difficulties in elderly people with significant levels of visual impairment.
Supporting Evidence
- Self-reported vision problems were strongly associated with visual impairment.
- Participants reporting difficulties with near vision and colour vision were more likely to be visually impaired.
- The NEI-VFQ scores were strongly associated with visual acuity and binocular status.
Takeaway
This study found that asking older people about their vision problems can help identify those who have serious vision issues.
Methodology
Cross-sectional study of people aged over 75 years using logistic regression to examine the association between NEI-VFQ scores and visual impairment.
Potential Biases
Concerns about the validity of certain NEI-VFQ sub-scales and its range of measurement.
Limitations
The study did not routinely collect causes of visual impairment and may not represent all elderly populations.
Participant Demographics
Participants were aged 77 to 101 years, with 36% male.
Statistical Information
P-Value
<0.001
Confidence Interval
95% CI 3.03 to 7.53
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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