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Practical assessment of vision in the elderly
Marilyn E Schneck1, Gunilla Haegerström-Portnoy
1The Smith Kettlewell Eye Research Institute, 2318 Fillmore Street, San Francisco, CA 94115, USA. mes@ski.org
Ophthalmology Clinics of North America
|June 18, 2003
Summary
Standard vision tests don't capture age-related vision decline in elders under poor lighting or glare. New measures better predict future vision loss and guide interventions for improved quality of life.
Area of Science:
- Ophthalmology
- Gerontology
- Vision Science
Background:
- Standard visual acuity tests may not accurately reflect an elder's functional vision.
- Age-related changes in the eye significantly impact vision, especially in suboptimal viewing conditions.
Purpose of the Study:
- To highlight visual impairments in elders despite good standard acuity.
- To emphasize the importance of non-standard vision measures for predicting future vision loss.
- To correlate vision function with daily task performance and quality of life.
Main Methods:
- Assessed visual function under non-ideal conditions (low contrast, varying light, glare).
- Compared standard acuity measures with performance on tasks like reading and face recognition.
- Tracked individuals with poor performance on low-contrast measures for future standard acuity changes.
Main Results:
- Elders experience significant visual impairment in low contrast, low light, or glare, not predicted by standard acuity.
- Performance on non-standard measures correlates better with daily tasks than standard acuity.
- Poor performance on low-contrast tests predicts future declines in standard acuity.
Conclusions:
- Standard acuity is insufficient for assessing elders' functional vision.
- Additional vision measures are crucial for identifying at-risk individuals and guiding interventions.
- Simple interventions can significantly improve vision function and quality of life for elders.