The Salisbury Eye Evaluation study (SEE), initiated in August, 1992, has investigated the relationship between visual impairment and physical disability in a population-based cohort of 2,520 people 65-84 years of age. We have completed the baseline evaluation and two-year follow-up examination of our cohort. From these data we have shown that there are substantial age-related declines in multiple measures of visual function and that these declines are associated with increased physical disability, reduced social interaction, and self-perceived difficulties with daily visual tasks. We have broadened the scope of vision assessment, compared to previous population-based studies, by including tests of contrast sensitivity, glare, stereoacuity, and visual fields. These tests of static visual function account for 33% to 50% of the variance for some tasks, such as reading and face recognition, but are only weakly predictive of performance in other tasks, such as reading and face recognition, but are only weakly predictive of performance in other tasks, such as activities of daily living, driving and mobility. We propose to extend the SEE study by including two dynamic measures of visual function which laboratory studies suggest may be more closely related to certain aspects of physical disability, particularly those related to mobility. The new tests include dynamic visual acuity and a test of motion sensitivity based on the detection of a displaced random- dot image. We also plan to extend our previous work by specific addressing the interaction of vision loss with cognitive status. Cognitive status will be assessed with an extensive battery of tests measuring learning, memory, verbal fluency, and attention. Outcome measures will include questionnaires and performance-based tests of daily activities such as reading and navigating a mobility course. All surviving members of the original SEE cohort will be invited to participate in two additional rounds of testing, separated by a 24-month interval. Given current refusal and mortality rates, we expect 1,964 to finish Round 3 and 1,785 to finish Round 4 testing. This will provide an opportunity to evaluate prospectively the relationship between changes in vision and cognitive status, and changes in physical disability, all within the context of a population-based and racially diverse cohort of older adults.

Agency
National Institute of Health (NIH)
Institute
National Institute on Aging (NIA)
Type
Research Project (R01)
Project #
5R01AG016294-03
Application #
6328648
Study Section
Special Emphasis Panel (ZRG1-VISB (05))
Program Officer
Finkelstein, Judith A
Project Start
1998-12-15
Project End
2003-11-30
Budget Start
2001-01-01
Budget End
2001-11-30
Support Year
3
Fiscal Year
2001
Total Cost
$713,350
Indirect Cost
Name
Johns Hopkins University
Department
Ophthalmology
Type
Schools of Medicine
DUNS #
045911138
City
Baltimore
State
MD
Country
United States
Zip Code
21218
Swenor, Bonnielin K; Bandeen-Roche, Karen; Muñoz, Beatriz et al. (2014) Does walking speed mediate the association between visual impairment and self-report of mobility disability? The Salisbury Eye Evaluation Study. J Am Geriatr Soc 62:1540-5
Lee, Bryan S; Munoz, Beatriz E; West, Sheila K et al. (2013) Functional improvement after one- and two-eye cataract surgery in the Salisbury Eye Evaluation. Ophthalmology 120:949-55
Swenor, Bonnielin K; Bressler, Susan; Caulfield, Laura et al. (2010) The impact of fish and shellfish consumption on age-related macular degeneration. Ophthalmology 117:2395-401
Ramulu, Pradeep Y; West, Sheila K; Munoz, Beatriz et al. (2009) Driving cessation and driving limitation in glaucoma: the Salisbury Eye Evaluation Project. Ophthalmology 116:1846-53
Chang, Margaret A; Bressler, Susan B; Munoz, Beatriz et al. (2008) Racial differences and other risk factors for incidence and progression of age-related macular degeneration: Salisbury Eye Evaluation (SEE) Project. Invest Ophthalmol Vis Sci 49:2395-402
Bressler, Susan B; Munoz, Beatriz; Solomon, Sharon D et al. (2008) Racial differences in the prevalence of age-related macular degeneration: the Salisbury Eye Evaluation (SEE) Project. Arch Ophthalmol 126:241-5
Freeman, Ellen E; Broman, Aimee T; Turano, Kathleen A et al. (2008) Motion-detection threshold and measures of balance in older adults: the SEE Project. Invest Ophthalmol Vis Sci 49:5257-63
Freeman, Ellen E; Munoz, Beatriz; Rubin, Gary et al. (2007) Visual field loss increases the risk of falls in older adults: the Salisbury eye evaluation. Invest Ophthalmol Vis Sci 48:4445-50
Rubin, Gary S; Ng, Edmond S W; Bandeen-Roche, Karen et al. (2007) A prospective, population-based study of the role of visual impairment in motor vehicle crashes among older drivers: the SEE study. Invest Ophthalmol Vis Sci 48:1483-91
Freeman, Ellen E; Munoz, Beatriz; Turano, Kathleen A et al. (2006) Measures of visual function and their association with driving modification in older adults. Invest Ophthalmol Vis Sci 47:514-20

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