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Veggies good for eyesight as you age Veggies good for eyesight as you age

Veggies good for eyesight as you age

Eye / Vision ProblemsAug 15, 2006

Scientists say a diet rich in the compounds lutein and zeaxanthin which are found in carrots and yellow and green vegetables such as sweetcorn, broccoli, peas and squash, offer protection against damage to eyesight in later life.

The compounds, carotenoids, are what give fruit and vegetables and egg yolks their colour.

The researchers say they may not really help you see in the dark, but brightly coloured yellow and green vegetables do have sight-enhancing properties.

In a study of post-menopausal women, researchers from the University of Wisconsin found that a high consumption of these vegetables was associated with a reduced risk of age-related macular degeneration (AMD).

At the beginning of the study, participants filled out a questionnaire to evaluate what their diets were like 15 years before the beginning of the study.

Blood samples were taken to assess levels of carotenoids and color photographs of the retina were used to determine the presence and progression of AMD.

AMD is the leading cause of blindness in older people in developed countries, and occurs when the region at the back of the retina that produces the sharpest vision deteriorates over time.

The condition is incurable but research has suggested that lutein and zeaxanthin may help combat AMD by absorbing damaging blue light, preventing attack by destructive groups of atoms called free radicals, and strengthening eye cell membranes.

The team led by Dr. Suzen Moeller studied women aged 50 to 79 who had either high or low dietary intakes of lutein and zeaxanthin and found that higher intakes over 15 years were associated with a reduced risk of intermediate-stage AMD in women under 75.

The study is published in the Archives of Ophthalmology.

Provided by ArmMed Media
Revision date: July 7, 2011
Last revised: by Jorge P. Ribeiro, MD

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