CHICAGO—Carotenoids, found in green leafy vegetables and colored fruits, have been discovered to increase visual performance and may prevent age-related eye diseases, according to a study published in the Journal of Food Science.
University of Georgia researchers compiled results of multiple studies on the effects of the carotenoids lutein and zeaxanthin on visual performance and concluded they reduce disability and discomfort from glare, enhance contrast, and reduce photostress recovery times. They also can reduce glare from light absorption and increase the visual range.
Lead author Dr. Billy R. Hammond Jr. noted that the research of the effects of lutein and zeazanthin are important because “it is clear that they could potentially improve vision through biological means. For example, a study conducted in 2008 suggests that the pigments protect the retina and lens and perhaps even help prevent age-related eye diseases such as macular degeneration and cataract.”