eye-nutrition
What you eat
affects your eyes
more than you think.
Dry eyes, blurry vision, and early macular changes are all influenced by what's on your plate. Here's what the research says — and what you can do starting today.
with high lutein intake
with omega-3 supplementation
with AREDS2 nutrients
Omega-3 fatty acids
and your tear film.
If you have dry, burning, or gritty eyes, the problem often isn't how much you blink — it's what your tears are made of. The oily layer of your tear film, produced by meibomian glands, is profoundly affected by the fatty acids circulating in your body.
Omega-3 fatty acids — specifically EPA and DHA from fish oil — work in two important ways: they reduce inflammation around the eyelid glands, and they may help improve the quality and fluidity of the meibum (the oil your glands produce). Better oil quality means tears that don't evaporate as quickly.
Multiple clinical studies show supplementation with EPA and DHA leads to meaningful improvements in dry eye symptoms, tear film stability, and meibomian gland function — particularly in patients with evaporative dry eye.
How omega-3 helps your tear film
EPA and DHA lower the inflammatory cytokines (IL-6, IL-8) that damage meibomian gland cells — reducing lid margin inflammation and gland dysfunction.
Omega-3s may lower the melting point of the oily secretion, keeping it fluid and allowing better flow — the opposite of the thick, waxy blockage seen in MGD.
A healthier oil layer slows tear evaporation — directly addressing the most common form of dry eye: evaporative dry eye disease.
DHA supplementation has been linked to increased corneal nerve density — supporting the sensory function of the ocular surface.
The evidence for omega-3 and dry eye is strong for evaporative/MGD-type dry eye. Results vary by formulation, dose, and dry eye type — which is why a proper dry eye evaluation matters before relying on supplementation alone.
Six nutrients your
eyes depend on.
These are the most research-backed nutrients for eye health — from protecting your macula to supporting night vision and slowing cataract development.
Omega-3 (EPA & DHA)
The most important nutrient for dry eye. Reduces meibomian gland inflammation, improves tear film oil quality, and may slow evaporative dry eye progression.
Salmon, sardines, mackerel, trout, herring. Also available as a supplement — ask us what we carry in clinic.
Lutein & Zeaxanthin
Natural pigments found in high concentrations in your macula. Act as a built-in sunblock for your retina — filtering damaging blue light and neutralising free radicals. High intake is associated with a 43% lower risk of advanced AMD.
Kale (11.4mg/100g), spinach, red peppers, eggs, corn, broccoli, peas.
Vitamin C
A powerful antioxidant that protects the lens and cornea from oxidative damage. Research links higher vitamin C intake with a reduced risk of cataract development and slower progression of macular degeneration.
Bell peppers, citrus fruits, kiwi, strawberries, broccoli, tomatoes.
Vitamin E
Works synergistically with vitamin C to protect cell membranes in the retina and lens from free radical damage. Part of the AREDS2 formula shown to reduce AMD progression risk by 25%.
Almonds, sunflower seeds, avocado, olive oil, hazelnuts, peanut butter.
Vitamin A
Essential for producing rhodopsin — the pigment your eyes use for night vision. Also critical for maintaining a healthy corneal surface. Deficiency is one of the leading causes of preventable blindness worldwide.
Liver, sweet potato, carrots, dark leafy greens, eggs, dairy products.
Zinc
Concentrated in the retina and choroid, zinc helps vitamin A produce melanin (a protective pigment). Also part of AREDS2 and critical for healthy macula function. Low zinc is linked to poor night vision and increased AMD risk.
Oysters, red meat, legumes, pumpkin seeds, chickpeas, dairy, eggs.
Eat these regularly.
Your eyes will thank you.
The Mediterranean diet — rich in oily fish, colourful vegetables, and healthy fats — is consistently linked to the lowest rates of AMD and dry eye. Here are the standout performers.
Fatty Fish
Salmon, sardines, mackerel, trout. Aim for 2–3 servings per week. The best dietary source of EPA and DHA for dry eye and macular health.
Kale & Spinach
The highest dietary sources of lutein and zeaxanthin. Lightly cooked with a small amount of fat increases absorption. Eat several times per week.
Eggs
A surprisingly strong source of lutein and zeaxanthin — and the bioavailability is excellent. Also contain zinc, vitamin A, and vitamin E.
Blueberries
Rich in anthocyanins — antioxidants that support retinal blood flow and may help with visual fatigue, particularly in screen-heavy lifestyles.
Red & Orange Peppers
One of the richest sources of both vitamin C and lutein. Raw peppers deliver the highest vitamin C content — great as a snack or in salads.
Carrots & Sweet Potato
High in beta-carotene, which the body converts to vitamin A. Essential for night vision and corneal health. Cooked with fat improves absorption.
Almonds & Walnuts
Almonds are a top source of vitamin E. Walnuts contain plant-based omega-3 (ALA), vitamin E, and zinc — great daily snack for overall eye health.
Legumes
Chickpeas, lentils, and kidney beans are high in zinc and copper — both important for healthy retinal function and efficient use of lutein in the body.
⚠️ What to limit for better eye health
Ultra-processed foodsHigh in trans fats and refined carbohydrates — linked to increased inflammation and higher AMD risk.
Excess sugar & refined carbsSpike blood sugar and promote oxidative stress, which accelerates retinal damage and worsens dry eye inflammation.
AlcoholDepletes vitamin A and B vitamins, impairs night vision, and disrupts tear film production — worsening dry eye symptoms.
Nutrition helps — but it's
rarely the whole answer.
Dry eye disease has multiple causes: meibomian gland dysfunction, inflammation, screen exposure, hormones, and environment all play a role. Nutrition and omega-3s are an important part of the picture — but a proper evaluation tells you exactly what's driving your symptoms and what will actually fix them.
If you experience any of these regularly, a dry eye evaluation is worth booking:
Burning or stinging eyes
Gritty or sandy sensation
Eyes watering excessively
Blurry vision that clears with blinking
Red or irritated eyes by end of day
Discomfort with contact lenses
No referral needed · Newton & Guildford · Direct billing available
Easy ways to eat
better for your eyes.
Eat oily fish twice a week
Salmon, sardines, mackerel, or trout — two servings per week delivers meaningful EPA and DHA. If you dislike fish, a high-quality supplement is an effective alternative. Ask us what we recommend in clinic.
Add greens to one meal daily
A daily handful of kale or spinach — lightly sautéed in olive oil — delivers the highest concentration of lutein and zeaxanthin of any food. Eating with fat dramatically improves absorption.
Eat eggs regularly
Two eggs at breakfast is one of the easiest ways to boost lutein, zeaxanthin, vitamin A, and zinc simultaneously — all in a highly bioavailable form.
Go colourful with vegetables
Red, orange, and dark green vegetables are the richest sources of eye-protective nutrients. Aim for at least three different colours on your plate at dinner — a simple visual cue for eye-healthy eating.
Stay well hydrated
Dehydration directly reduces tear production and worsens dry eye symptoms. Aim for 6–8 glasses of water daily — more if you consume caffeine or spend time in air-conditioned environments.
Consider a quality supplement
Dietary omega-3 can be hard to get consistently from food alone. A high-potency EPA/DHA supplement fills the gap. We carry options in clinic — ask our team about dosing at your next visit or dry eye evaluation.
Nutrition & eye health,
answered clearly.
Good nutrition starts here.
Great eye care starts with us.
Book a dry eye evaluation and ask our team about omega-3 supplements at your visit. We'll give you a clear picture of your eye health and what will actually make a difference.
No referral needed · Direct billing available · Newton ext. 1 · Guildford ext. 2