Retinal microvascular abnormalities and cognitive function in Latino adults in Los Angeles.

Ophthalmic Epidemiology
Nicole M GattoWendy J Mack

Abstract

Retinal vessels may provide a readily accessible surrogate approach to study vascular disease in brain small vessels. Previous epidemiologic studies of retinal microvascular abnormalities and cognition have not included large numbers of Latinos who have a high prevalence of diabetes and hypertension. We used data from 809 elderly Latino participants in the Los Angeles Latino Eye Study (LALES) to assess whether retinal vessel caliber and microvascular abnormalities are cross-sectionally associated with lower cognitive function. Cognitive screening was conducted with the Cognitive Abilities Screening Instrument-Short form (CASI-S) and in-depth testing with the Spanish English Neuropsychological Assessment Scales (SENAS). Retinal photographs were used to identify retinopathy signs and measure retinal vessel caliber. A total of 65.8% had high blood pressure, 34.5% had diabetes; self-reported diagnoses of heart attack, heart failure, angina and stroke were rare. Retinal calibers and any retinopathy were not associated with the CASI-S, total SENAS or any SENAS cognitive factors assessed as continuous variables. The odds of a low CASI-S score were two times higher in subjects with generalized arteriolar narrowing (OR = 2.04, 95% CI = ...Continue Reading

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