Nutrition

Foods and Nutrients That Support Healthy Eyes

A plain-language guide to lutein, zeaxanthin, omega-3s and other eye-friendly nutrients, plus what the AREDS2 study really found.

By the Clear Sight Journal editorial teamUpdated October 23, 20266 min read6 sources cited

Foods and Nutrients That Support Healthy Eyes

You may have heard that carrots are good for your eyes. That's true, but they're only part of the story.

Your eyes rely on tiny blood vessels and many nutrients to stay healthy. The good news is that the same kind of eating that helps your heart also helps your eyes.

Let's look at which foods matter, in simple terms, and what the well-known AREDS2 eye study actually found.

Why food matters for your eyes

The American Academy of Ophthalmology explains that a diet rich in fruits, vegetables and whole grains helps your eyes because they depend on small arteries for oxygen and nutrients, just like your heart does.

Some nutrients help keep the eye healthy overall. Others have been linked to a lower risk of certain eye diseases.

Lutein and zeaxanthin: the "leafy green" nutrients

These two long names belong to a family of natural plant pigments. They collect in the macula, the small part of the eye that gives you sharp, straight-ahead vision for reading and recognizing faces.

Good food sources include:

Kale and spinach
Collard greens, turnip greens and Swiss chard
Romaine lettuce
Broccoli and peas
Eggs

The National Eye Institute's AREDS/AREDS2 questions and answers notes that people whose diets are rich in green, leafy vegetables have been found to have a lower risk of age-related macular degeneration (AMD).

Omega-3 fatty acids

Omega-3s are healthy fats found in oily fish. They are part of the retina, the light-sensitive layer at the back of the eye.

Good sources include:

Salmon
Tuna
Sardines and trout
Halibut

The National Eye Institute lists fish high in omega-3s among the foods that are good for your eyes.

Vitamins C and E

These are antioxidants, which help protect cells from everyday wear and tear.

Vitamin C: oranges, grapefruit, kiwi, strawberries, tomatoes, peppers and broccoli.
Vitamin E: almonds, sunflower seeds, olive oil and avocados.

Zinc and vitamin A

Zinc helps keep the retina healthy. You'll find it in beans, lentils, seeds, seafood, dairy and eggs.
Vitamin A helps your eyes turn light into the images you see and keeps the eye surface moist. Sweet potatoes, carrots, cantaloupe and apricots are good sources.

These food lists come from the American Academy of Ophthalmology's guide to diet and eye health.

The Mediterranean way of eating

Many of these nutrients come together in the Mediterranean style of eating: lots of vegetables, fruits, beans, whole grains, olive oil and fish.

The American Academy of Ophthalmology reports that, in people with AMD, following a Mediterranean-style diet has been linked to slower progression of the disease. It is also good for the heart and brain.

AREDS2 explained simply

AREDS stands for the Age-Related Eye Disease Study. It was a large research project run by the National Eye Institute. A second study, called AREDS2, followed it.

Here is what the research found, in plain words:

Researchers tested a specific high-dose combination of vitamins C and E, zinc, copper, and lutein and zeaxanthin.
It helped people who already had intermediate or late AMD. In those people, it may slow the disease from getting worse.
It showed no benefit for people with early AMD or no AMD.
It cannot prevent AMD, and it does not cure it.
The doses were much higher than what's in a regular multivitamin, and higher than what most people get from food alone.

These points come straight from the National Eye Institute's AREDS/AREDS2 page.

Why talk to your doctor first

High-dose vitamins are not right for everyone. The National Eye Institute notes that high-dose vitamin E can interact with some medicines, such as blood thinners. The original formula also contained beta-carotene, which was linked to a higher lung cancer risk in people who smoke.

That's why the National Eye Institute recommends talking with a health care provider before taking any nutritional supplement. Your eye doctor can tell you whether your eye exam shows a stage of AMD where this kind of formula might help.

Food first

For most people, the best plan is simply to eat well. As one ophthalmologist told the American Academy of Ophthalmology, most Americans can get enough nutrients through their diet without supplements.

It's also never too late to start. Small changes count.

Easy ways to eat for your eyes this week

Breakfast: Scrambled eggs with a handful of spinach.
Lunch: A salad with romaine, peppers and a few sunflower seeds.
Snack: An orange or a small handful of almonds.
Dinner: Baked salmon with broccoli and a sweet potato.
Swap: Cook with olive oil instead of butter a few times a week.

A gentle reminder

Healthy food supports your eyes, but no food or vitamin can give back vision that has already been lost. The American Academy of Ophthalmology is clear that nutrition is not a cure for eye disease.

When to talk to your eye doctor

Talk with your eye doctor if:

You are thinking about taking any eye vitamin or supplement.
You've been told you have early signs of macular degeneration.
Straight lines look wavy, or you notice a blurry spot in the center of your vision. The National Eye Institute says wavy lines are a warning sign to see your eye doctor right away.
You're due for a dilated eye exam.

Bring a list of the medicines and vitamins you take. It helps your doctor give you the safest advice.

Sources

Health information you can trustThis article is based on the public health sources linked above and follows our editorial standards. The content on this site is for general information only and is not medical advice. Always talk to your doctor before making changes to your health routine, diet or medication.