Visual Impairment in White, Chinese, Black, and Hispanic Participants from the Multi-Ethnic Study of Atherosclerosis Cohort.

Kleins Lab // Publications // Jan 01 2015

PubMed ID: 26395659

Author(s): Fisher DE, Shrager S, Shea SJ, Burke GL, Klein R, Wong TY, Klein BE, Cotch MF. Visual impairment in White, Chinese, Black, and Hispanic participants from the Multi-Ethnic Study of Atherosclerosis cohort. Ophthalmic Epidemiol. 2015;22(5):321-32. doi: 10.3109/09286586.2015.1066395. PMID 26395659

Journal: Ophthalmic Epidemiology, Volume 22, Issue 5, 2015

PURPOSE To describe the prevalence of visual impairment and examine its association with demographic, socioeconomic, and health characteristics in the Multi-Ethnic Study of Atherosclerosis (MESA) cohort.

METHODS Visual acuity data were obtained from 6134 participants, aged 46-87 years at time of examination between 2002 and 2004 (mean age 64 years, 47.6% male), from six communities in the United States. Visual impairment was defined as presenting visual acuity 20/50 or worse in the better-seeing eye. Risk factors were included in multivariable logistic regression models to determine their impact on visual impairment for men and women in each racial/ethnic group.

RESULTS Among all participants, 6.6% (n = 421) had visual impairment, including 5.6% of men (n = 178) and 7.5% of women (n = 243). Prevalence of impairment ranged from 4.2% (n = 52) and 6.0% (n = 77) in white men and women, respectively, to 7.6% (n = 37) and 11.6% (n = 44) in Chinese men and women, respectively. Older age was significantly associated with visual impairment in both men and women, particularly in those with lower socioeconomic status, but the effects of increasing age were more pronounced in men. Two-thirds of participants already wore distance correction, and not unexpectedly, a lower prevalence of visual impairment was seen in this group; however, 2.4% of men and 3.5% of women with current distance correction had correctable visual impairment, most notably among seniors.

CONCLUSION Even in the U.S. where prevalence of refractive correction is high, both visual impairment and uncorrected refractive error represent current public health challenges.