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The effects of lutein and zeaxanthin on select visual functions
Glare disability, photostress, contrast enhancement, and temporal vision

EMILY R. BOVIER, KEVIN J. O’BRIEN, BILLY R. HAMMOND*
*Corresponding author
Vision Sciences Laboratory, The University of Georgia, Athens, GA 30602, USA

Abstract

The influence of diet on visual performance is a long-standing question. The dietary carotenoids lutein andzeaxanthin, for example, create a natural yellow intraocular filter by accumulating in retinal tissue (where they are termedmacular pigment). Yellow filters have long been thought to improve visual performance by absorbing scattered light within theeye and enhancing visibility of a target relative to its background. More recent data suggest the pigments may also influencehigher-level visual processing.


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