YOUR EYES NEED ANTIOXIDANTS
HERE’S WHY IT MATTERS NOW |
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Your eyes work harder than almost any other tissue in the body.
From the moment you wake up, they’re constantly on duty—focusing, refocusing, adjusting to changing light, and interpreting millions of details every second.
But this constant demand comes with a cost. Every time light enters the eye and every time your cells use oxygen to produce energy, tiny unstable molecules called free radicals are created.
Normally, your body’s defences keep these molecules in check. When they accumulate faster than your defences can handle, they cause internal' rust” called oxidative stress.
The eyes, especially the retina and macula, contain highly active, sensitive tissues vital for clear vision. Without balanced oxidative stress, damage accumulates over time, affecting glare, low-light clarity, and comfort after screen use. Though unnoticed initially, this stress gradually alters your sight.
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WHY THE RETINA NEEDS EXTRA PROTECTION
The retina sits at the back of the eye, converting light into the electrical signals your brain turns into vision.
It’s an active, highly metabolic tissue layer ofls that works constantly when your eyes are open. Photoreceptor cells in the retina (rods and cones) capture light and trigger chemical reactions, generating electrical impulses. These travel along the optic nerve to the brain, where they are processed into images. specialised cel
The retina consumes much oxygen and nutrients due to its energy-intensive process. It contains high levels of polyunsaturated fats, vital for vision but prone to damage. This combination makes the retina vulnerable to oxidative damage.
This vulnerability mainly affects the macula, the retina's central part responsible for:
- Sharp detail (reading, recognising faces, fine tasks)
- Contrast sensitivity (distinguishing objects from backgrounds), and
- Colour perception (seeing rich, accurate colours).
Oxidative stress happens when free radicals outpace the eye’s defenses, gradually damaging retinal cells, disrupting function, and weakening the macula's structure. This leads to a slow decline in vision and resilience before symptoms appear.
That’s where antioxidants come in.
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HOW ANTIOXIDANTS SUPPORT VISUAL RESILIENCE
Antioxidants serve as the eye’s internal defence, neutralising free radicals from light exposure and metabolism. These unstable molecules can harm retinal cells, including photoreceptors that convert light into visual signals.
Key eye-protective antioxidants preserve retina and macula by reducing oxidative stress and maintaining macular pigment density, which filters harmful blue light like natural sunglasses.
Over time, antioxidants become more important as natural defences decline with age and exposure to sunlight, screens, and pollutants increases. By supporting cellular repair and stabilising membranes, they boost visual resilience, keeping eyes healthier and functioning longer.
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“The human body protects itself by accumulating high levels of protective antioxidants in the retina ... help to shield your sharp central vision from oxidative damage.”
PROFESSOR MARCUS FRUTTIGER
UCL & MOORFIELDS EYE HOSPITAL
CO-FOUNDER AT MTHK |
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