Broadhead GK, Hong T, Bahrami B, Flood V, Liew G, Chang AA. Diet and risk of visual impairment: a review of dietary factors and risk of common causes of visual impairment. Nutr Rev. 2021 May 12;79(6):636-650.

Broadhead GK, Hong T, Bahrami B, Flood V, Liew G, Chang AA. Diet and risk of visual impairment: a review of dietary factors and risk of common causes of visual impairment. Nutr Rev. 2021 May 12;79(6):636-650.

Abstract

Age-related macular degeneration, diabetic retinopathy, cataract, and glaucoma remain the leading causes of visual impairment in developed nations, resulting in a substantial treatment burden on sufferers and health care systems. Despite significant advances in diagnostic testing and therapeutics, population-based strategies to reduce the burden of these diseases remain limited. However, there is some evidence that these diseases may share overlapping risk factors, particularly in regard to dietary intake and antioxidant status, and it is thus possible that dietary modification may reduce both the prevalence and severity of these conditions. In particular, dietary intake of green leafy vegetables, hyperglycemia/glycemia index, and omega-3 fatty acid intake, as well as overall dietary patterns, may affect risk of one or more of these conditions. In this review, we analyse the evidence for dietary intake and the association with these conditions, and provide insights into possible modifications that may thus simultaneously reduce the risk of visual impairment from multiple causes, including improving dietary intake of green leafy vegetables and reducing dietary glycemic index, both of which have been associated with a decreased risk of multiple causes of visual impairment.

 

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