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A comprehensive assessment of visual impairment in a population of older Americans: the SEE study.

1997; Elsevier BV; Volume: 124; Issue: 2 Linguagem: Inglês

10.1016/s0002-9394(14)70808-6

1879-1891

SK West, B. Munoz, K Brandeen-Roche, Scott L. Zeger, O. D. Schein, L. P. Fried, THE ACTIVE BACTERIAL CORE SURVEILLANCE TEAM, G.S. Rubin,

Retinal Imaging and Analysis

Results. Visual function decreased linearly with age for the acuity, contrast sensitivity, glare, and visual field tests. Stereoacuity remained constant into the mid-70s and declined at an accelerating rate thereafter. Black participants had lower contrast sensitivity, reduced stereoacuity, and worse visual fields, at all ages compared to white participants; however, white participants were more sensitive to glare. The overall prevalence of visual acuity impairment in blacks was 5.6% versus 3.0% for whites, using the traditional United States definition (worse than 20/40 to better than 20/200) and 3.3% for blacks versus 1.6% for whites, using the World Health Organization definition (worse than 20/60 to 20/400). Acuity was correlated moderately with contrast sensitivity, stereoacuity, and visual fields (Spearman rho = 0.50, 0.35, and 0.34, respectively). The correlation between acuity and glare sensitivity was low (rho = 0.12).