LEAFY green vegetables may be the secret to boosting our sight.A diet
rich in nitrate – found in spinach, kale and lettuce – reduces the risk of
glaucoma by up to 30 per cent, scientists revealed.
The study was
published in JAMA Opthalmology.
Scientists from Brigham & Women’s Hospital and Harvard Medical
School studied the association between dietary nitrate intake and primary
open-angle glaucoma.
The disease occurs because of damage to the optic nerve, often
when fluid builds up in the front part of the eye, according to the American
Academy of Ophthalmology.
It is the leading cause of blindness for people over the age of
60.
Previous research suggested that nitrate – which is found in leafy
green vegetables – is beneficial for blood circulation.
And so, the scientists set out to see if it has any effects on
glaucoma.
The scientists analyzed the diets and eye exams of nearly 64,000
women between 1984 and 2012, as well as 41,000 men.
Each of the participants were over the age of 40 at the time the
study began – and none of they had glaucoma.
The participants had eye exams every two years.
The surveys followed up with the participants over 25 years.
The participants were given repeated questionnaires, which allows
researchers to evaluate their nitrate intake and glaucoma risk.
And, over the course of the study, 1,483 of the participants
developed the disease.
The researchers looked at the participants’ dietary intake.
Source: ngrguardiannews
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