For millions of Americans over 55, changes in vision are a common concern. From occasional blurriness to sensitivity to light, many people begin to notice shifts in how clearly they see the world around them.

While regular visits to an eye care professional remain the foundation of good eye health, a growing body of research suggests that nutrition may play an important supporting role in how well our eyes age.

We spoke with Dr. Ming Wang, a Harvard-trained ophthalmologist with over fourteen years of clinical experience, to learn more about what science says regarding eye health and nutrition.

Note: This article is for informational purposes only and is not intended as medical advice. Always consult your eye care professional before making changes to your health routine.

Why Our Eyes May Need More Support as We Age

According to the National Eye Institute, age-related eye conditions such as cataracts, glaucoma, and macular degeneration affect millions of Americans each year. The prevalence of these conditions has increased significantly over the past several decades.

Dr. Wang explains that our eyes are among the most metabolically active organs in the body. They require a constant supply of nutrients and oxygen to function properly.

“As we age, the body’s ability to deliver nutrients to the eyes and repair daily wear naturally decreases,” says Dr. Wang. “This is where nutritional support may offer a complementary approach alongside conventional care.”

Additionally, modern lifestyle factors — including extended screen time — place increased demands on our visual system, making nutritional support potentially more relevant today than in previous generations.

Three Nutrients Studied for Eye Health

Research from institutions including Harvard, the Mayo Clinic, and the National Eye Institute has examined several nutrients for their potential role in supporting eye health. Here are three that have received significant scientific attention:

Antioxidant

Anthocyanins (found in blueberries)

Anthocyanins are naturally occurring antioxidants found in dark-pigmented berries. Studies have explored their potential role in supporting healthy blood flow to the eyes and helping to manage oxidative stress in ocular tissues. Wild Nordic varieties, grown in harsh climates, contain higher concentrations of these compounds.

Carotenoid

Lutein & Zeaxanthin

These carotenoids, found in marigold flowers and leafy greens, naturally accumulate in the macula — the part of the eye responsible for central vision. The AREDS2 study, conducted by the National Eye Institute, found that lutein and zeaxanthin supplementation was associated with a reduction in the risk of advanced age-related macular degeneration in certain participants.

Marine Extract

Astaxanthin

Derived from red marine algae, astaxanthin is a powerful antioxidant that has been studied for its potential to support mitochondrial function in eye cells. A clinical study at the Mayo Clinic observed that participants taking astaxanthin reported less eye fatigue and improved visual comfort after several weeks of supplementation.

Dietary sources: You can find many of these nutrients in everyday foods. Blueberries, spinach, kale, eggs, salmon, and bell peppers are all considered supportive of eye nutrition. However, some people may benefit from supplementation to reach clinically studied levels.

What the Research Shows

A five-year study by the National Eye Institute followed over 4,000 participants between the ages of 58 and 86. The study found that participants with higher levels of lutein and zeaxanthin had a statistically significant lower incidence of certain age-related eye conditions.

Separately, research published in peer-reviewed journals has examined how anthocyanin-rich berry extracts may support the body’s natural cellular maintenance processes in the eyes.

While these findings are encouraging, it is important to note that nutritional approaches are studied as complementary support, not as replacements for professional eye care or prescribed treatments.

Practical Steps for Supporting Eye Health

Dr. Wang recommends the following general guidelines for adults concerned about their vision:

1. Get regular eye exams. Early detection is one of the most effective tools for managing age-related eye conditions.

2. Eat a nutrient-rich diet. Focus on colorful fruits and vegetables, leafy greens, and fatty fish rich in omega-3s.

3. Manage screen time. Follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds.

4. Protect your eyes from UV light. Wear sunglasses with UV protection when outdoors.

5. Consider targeted supplementation. If your diet doesn’t consistently include the nutrients mentioned above, a quality eye health supplement may help fill the gap. Talk to your doctor about what’s right for you.

Learn More from Dr. Wang

Dr. Wang has prepared a detailed video presentation explaining the science behind nutritional approaches to eye health in greater depth. In the presentation, he discusses current research, practical recommendations, and answers common questions from patients.

Watch Dr. Wang’s Free Educational Presentation

Learn how nutrition and lifestyle factors may support healthy vision as you age. No signup required.

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Sources & References

  • National Eye Institute — AREDS2 Study Results
  • Age-Related Eye Disease Study 2 (AREDS2), National Institutes of Health
  • Mayo Clinic — Astaxanthin and Visual Comfort Research
  • Wilmer Eye Institute, Johns Hopkins Hospital — Stem Cell Research in Ophthalmology
  • Wang, M. — From Darkness to Sight, Amazon Publishing
  • National Eye Institute — Lutein & Zeaxanthin Fact Sheet