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Cataracts Health Center

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Healthy Diet May Lower Cataract Risk for Women

Following Recommended Dietary Guidelines Protects Some Women From Common Cataracts
By Katrina Woznicki
WebMD Health News
Reviewed by Laura J. Martin, MD

June 14, 2010 -- Eating healthfully isn’t just good for your heart, your bones, or keeping your weight down. New research shows good nutrition is also good for your eyes.

A study of more than 1,800 women has found that those who scored among the highest group for following nationally recommended dietary guidelines had a 37% lower risk for nuclear cataracts, the most common cause of visual impairment in the United States. This association held even after adjusting for other non-dietary-related factors.

The healthy diet linked to this reduced risk featured high quantities of fruits, vegetables, whole grains, and lean protein such as beans, fish, eggs, and low quantities of salt and fat.

Overall, a higher prevalence of cataracts was associated with poor diet and other lifestyle factors, including smoking and obesity. Having brown eyes, being nearsighted, and having a high pulse pressure were also associated with increased prevalence for cataracts. Interestingly, taking multivitamin supplements did not appear to affect cataract risk. The findings are reported in the June issue of Archives of Ophthalmology.

Cataracts Common in Americans

The results are based on 1,808 women ages 50 to 79 who participated in the Carotenoids in Age-Related Eye Disease study. The women filled out questionnaires about their diets between 1994 and 1998. The researchers determined prevalence of nuclear cataracts from photographs and self-reports assessed between 2001 and 2004. Whether the findings could apply to men was not addressed in this study.

The risk of cataracts rises with age. Researchers said their findings suggest that some risk factors , including diet, may be within the individual’s control.

Cataracts are so common that treating them has created a heavy economic toll. Reducing the risk for cataracts could ultimately produce cost savings. “Surgery to remove lenses with cataracts accounts for approximately 60% of vision-related Medicare expenditures,” write study researcher Julie A. Mares, PhD, of University of Wisconsin in Madison, and colleagues.

According to the American Academy of Ophthalmology, more than 20 million Americans 40 and older have cataracts. Half of all Americans have cataracts by age 80.

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