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In scientific circles, it is well established that free radicals and inflammation play key roles in damaging vision. The eyes are constantly bombarded by ultraviolet rays and environmental pollution, which in turn trigger the production of free radicals and inflammation. Eating a nutrient-poor, proinflammatory diet and smoking do the same thing.
The following antioxidant-rich supplements can help preserve your vision and prevent devastating eye conditions.
These two nutrients generally occur together in nature and are particularly concentrated in the eye. Both are antioxidants, and therefore protect against free radicals and inflammation. Lutein and zeaxanthin also filter out potentially damaging light, much like a nutritional version of sunglasses. And they help to keep cell membranes stable, which helps the eye maintain a healthy structure.
Studies have found that people who get higher levels of lutein and zeaxanthin, from either food or supplements, are less likely to develop age-related macular degeneration (AMD) or cataracts. Spinach and other green vegetables are good food sources, but because nutrient levels in today's food are often depleted, supplements provide a more predictable amount.
One of the key omega-3 fats found in fish oil, docosahexaenoic acid (DHA) is highly concentrated in the cells that make up the light receptors in our eyes. Not only is DHA critical for maintaining healthy cell membranes, it also acts as an antioxidant that neutralizes harmful free radicals. But because our bodies can't make DHA, we must get sufficient amounts from our diets; otherwise, the eye is more susceptible to damage and the conditions that lead to vision loss.
The Age-Related Eye Disease Study (AREDS), which tracked 3,600 people who already had AMD, found that those who ate the most fish had the slowest progression of the disease.
Studies have found that the herb ginkgo (Ginkgo biloba) is an effective antioxidant. It fights free radicals and improves circulation in the small blood vessels that deliver oxygen and nutrients to the eyes. This is valuable for anyone, but particularly for people with blood sugar issues or diabetes, since these diseases impair circulation. This can lead to poor vision. Two small human studies have found that ginkgo improves blood flow to the eyes in people with glaucoma.
Vitamin C is a well-known antioxidant that is beneficial for preventing and treating all major forms of eye disease. The AREDS study found it effective for AMD. A long-term study, published in the American Journal of Clinical Nutrition, also documented that it reduces cataracts if taken for 10 years or more. And other research, published in Alternative Medicine Review, found that both intravenous and oral vitamin C-in very high doses taken under medical supervision-reduced pressure in the eyes of people with glaucoma.
World War II pilots ate bilberry jam before night bombing raids to improve their vision. The berry contains specific antioxidants known as anthocyanidins that complement other antioxidants. Preliminary research has demonstrated that bilberry prevents both AMD and cataracts. A study found that bilberry helps stop the progression of cataracts in elderly people.
Written by Kim Erickson for Better Nutrition and legally licensed through the Matcha publisher network. Please direct all licensing questions to legal@getmatcha.com.
Part of my training business includes golf fitness. I am a certified TPI (Titleist Performance Institute) Level 1 Fitness Trainer.
As a TPI trainer, I help golfers assess their body movement as it relates to their swing. By performing a TPI swing assessment we can identify various areas that might not be allowing the golfer to move as freely as they would like and can cause swing flaws to occur, such as “over the top” or “early extension”, “swaying or sliding” and others.
How many of you think about, on a regular basis, the cost of your health. I don’t mean the cost of your healthcare premium or your deductible at the doctors office, but the actual cost of your lifestyle on your health?