TruVista Library

Eye Health Library

Plain-language articles on macular degeneration, AREDS2 and the nutrients studied for eye health, with links to the research behind every claim.

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25 articles

Doctor sitting beside an older man on a couch, resting a hand on his shoulder as they talk
Macular degeneration8 min read

Photobiomodulation for Macular Degeneration: What the Evidence Shows

Photobiomodulation is the first FDA-authorized treatment for early and intermediate dry AMD. Here is how the light therapy works, what the LIGHTSITE trials showed, who may...

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Wooden table with a bowl of kale, spinach and orange, plus salmon, eggs, almonds, sunflower seeds, corn and red pepper
AREDS28 min read

Nutrition and Eye Health: What the Research Actually Shows

The best evidence for eye vitamins covers one specific use: slowing progression in people who already have intermediate AMD, or late AMD in one eye. Here...

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Older woman in glasses reading a book in an armchair by a sunny window
AREDS28 min read

AREDS and AREDS2 Explained: How the Eye Vitamin Trials Worked

AREDS and AREDS2 are the National Eye Institute trials behind today's eye vitamin formulas. Here is how they were designed, who took part, what they found,...

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Older adult filling a weekly pill organizer with softgels at a wooden table beside a glass of water and a desk calendar
AREDS27 min read

How Long Does AREDS2 Take to Work?

There is no set number of weeks. The AREDS and AREDS2 trials measured a lower risk of advanced AMD over years, and the supplements are not...

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Older adult reading a supplement label at a kitchen table
AREDS27 min read

Can AREDS2 Prevent Macular Degeneration?

No. The National Eye Institute says nutritional supplements cannot prevent AMD. The AREDS2 formula was studied in people who already have intermediate AMD or late AMD...

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Small white bowls of orange slices, almonds, pumpkin seeds, cashews, and spinach with a soft-boiled egg
Eye nutrition8 min read

5 Vitamins and Nutrients That Matter for Your Eyes

Vitamin C, vitamin E, zinc, copper, and lutein with zeaxanthin are the nutrients behind the AREDS2 formula. Here is what the evidence shows for each, where...

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Fresh oysters on ice beside small bowls of pumpkin seeds, cashews and lentils on a slate board
AREDS29 min read

Zinc and Copper for Eye Health: What the AREDS Trials Found

In the AREDS trial, zinc plus copper lowered the risk of progressing from intermediate to advanced AMD by 21%, according to the National Eye Institute. Here...

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Hands arranging sliced red and yellow peppers, halved oranges and kiwifruit beside a bowl of almonds and sunflower seeds
Macular degeneration8 min read

Vitamin C and Vitamin E for Eye Health: What the Evidence Shows

Vitamins C and E are part of the AREDS2 formula studied to slow intermediate AMD, but large trials found neither prevents AMD on its own, and...

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Fish oil softgel capsules in a small dish beside a fresh salmon fillet on a kitchen counter
Eye nutrition9 min read

Omega-3s, Fish Oil and Your Eyes: What the Trials Found

Two NEI-funded trials tested omega-3 supplements for the eyes: AREDS2 found no added benefit for AMD, and DREAM found fish oil no better than placebo for...

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Bunches of spinach, Swiss chard, collards and kale on a wooden cutting board with a bowl of green peas
Eye nutrition9 min read

Leafy Greens and Other Foods Ranked by Lutein and Zeaxanthin

Cooked dark leafy greens lead USDA's list for lutein and zeaxanthin, with a cup of boiled spinach at 20,300 mcg. See 21 foods ranked, which values...

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Two white supplement bottles, a small dish of softgels, a glass of water and reading glasses on a kitchen counter
AREDS28 min read

AREDS2 Supplements Compared by Label: PreserVision, ICaps, Ocuvite and More

Not every eye vitamin that mentions AREDS2 contains the trial amounts. We compare six Supplement Facts labels side by side and explain how to read serving...

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Pharmacist talking with an older woman who is holding a supplement bottle at a pharmacy counter
AREDS26 min read

Are AREDS2 Vitamins Safe? Side Effects and Interactions

The main AREDS report found no statistically significant serious side effects, but high-dose zinc and vitamin E carry specific cautions. Here is what to review with...

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