Wednesday June 20, 2018

Eat green vegetables to cut down on glaucoma risk

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New York: Greater intake of dietary nitrate and green leafy vegetables is associated with a 20-30 percent lower risk of primary open-angle glaucoma (POAG), according to a study.

Jae H. Kang of Brigham & Women’s Hospital and Harvard Medical School, Boston, and colleagues evaluated the association between dietary nitrate intake, derived mainly from green leafy vegetables and POAG.

They looked at a follow-up study involving 63,893 women and 41,094 men over a period of more than 35 years.

During the follow-up, 1,483 incident cases of POAG were identified.

The researchers found that greater intake of dietary nitrate and green leafy vegetables was associated with a 20 percent to 30 percent lower POAG risk.

The association was particularly strong (40 percent-50 percent lower risk) for POAG with early paracentral visual field loss (a subtype of POAG linked to dysfunction in blood flow autoregulation).

POAG is caused by optic nerve damage that is chronic and progresses over time.

The findings were published in the journal JAMA Ophthalmology. (IANS)

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Low Carb and High Fat Diet May Help Maintain Eyesight

Higher rates of glaucoma in people with diabetes suggests a potential connection between this eye disease and metabolic stress.

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Switching mice destined to develop glaucoma to a low carbohydrate, high fat diet protects the cells of the retina and their connections to the brain from degeneration.
Diet is very important in maintaining a healthy eyesight. Pixabay

Besides helping lose weight, consuming a ketogenic diet — which is high fat, low protein and low carbohydrates — can also help maintain vision in patients with glaucoma, finds a study conducted over mice.

Glaucoma is a progressive disease in which damage to the cells that transmit visual information to the brain leads to vision loss and, in some cases, blindness.

Higher rates of glaucoma in people with diabetes suggests a potential connection between this eye disease and metabolic stress.

Switching mice destined to develop glaucoma to a low carbohydrate, high fat diet protects the cells of the retina and their connections to the brain from degeneration.
Low carb diet can maintain eyesight. Pixabay

The findings led by Denise Inman from the Northeast Ohio Medical University in the US showed that low carb, high fat diet protects retina cells and their connections to the brain from degeneration.

Switching mice destined to develop glaucoma to a low carbohydrate, high fat diet protects the cells of the retina and their connections to the brain from degeneration.

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The results, published in the journal JNeurosci, found that feeding mice, genetically modified to develop glaucoma, a ketogenic diet composed of nearly 90 per cent fat for two months protected retinal cells from degeneration by increasing energy availability.

Although further research into this intervention is required, these findings suggest that a ketogenic diet may help to maintain vision in patients with glaucoma, the researchers said. (IANS)

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