I CAN SEE CLEARLY NOW
As we age, our risk of a plethora of nasty degenerative diseases increases. Macular Degeneration (AMD) is one such age related disease, which can lead to blindness, along with resulting depression, social isolation and increased risk of falls and fractures. InAustraliaandNew Zealand,AMDis the leading cause of blindness. It effects one in seven Australians over the age of 50.
The macula is the small, oval shaped part of the retina of the eye. It is responsible for the detailed central vision needed for tasks such as reading, recognition of faces and appreciation of visual detail.
Early onsetAMDcauses blurring of the central vision, but with deterioration over time, can develop into significant loss of vision or even blindness.
It is well established thatAMDruns in families and there is a strong genetic factor, determining about 70% of the diseases severity. The good news is that studies continue to show that lifestyle and nutritional choices can dramatically slow the development of the disease, even if you are unlucky enough to carry the genes.
One such study from theTuftsUniversity, examined identical twins (carrying identical genes), withAMDat different stages, allowing researchers to work out the environmental and behavioural factors that were contributing to the development of theirAMD.
What did they find? That diet and nutrition play a vital role in slowing the degeneration of the macular…. Hardly an earth shattering revelation. Nourish your cells and you will protect them despite carrying the genes that increase risk of disease!
The study found that the twins with the least severeAMDate diets higher in vitamin D from dietary sources such as oily fish or milk, compared with their identical twin. This could be because vitamin D has anti-inflammatory properties, or because it blocks the formation of new blood vessels that can grow under the macula, leaking blood and causing vision loss.
Twins with a higher dietary intake of methionine and betaine also showed a slower disease progression. Betaine is rich in fish, grains and spinach, while methionine is found in poultry, fish and dairy foods.
Twins with the most severe, fast progressingAMDwere smokers.
Take home recommendation from this (and other) studies…
To protect your vision as you age:
- eat a diet rich in fruits and vegetables.
- Load up on antioxidant rich foods such as berries, dark green, purple and orange fruits and vegetables, and green tea
- Avoid cigarette smoking and second hand smoke.
- Have your vitamin D levels tested, and supplement with D3 throughout the winter months
- Include plentiful supplies of oily fish in your diet…. Or supplement with at least 3000mg of fish oil daily.
