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By Dr. Carmen Colitz, DVM, PhD, DAVCO, MBA, DCLOVE and Dr. Johanna Fava, DVM, PhD
When it comes to caring for your dog, there’s a lot to consider about their overall health. You probably think about things like food, exercise, and annual vet visits, but your dog’s vision is equally as important. Things like antioxidants for dogs can help boost their long-term health, as well as their eyesight.
Just like in people, your dog’s eyes are constantly exposed to things that can lead to gradual damage, sunlight, aging, inflammation, and environmental stressors. These triggers generate unstable molecules in the body known as “free radicals,” which can build up over time and lead to something called “oxidative stress.”
What Is Oxidative Stress, and Why Does It Matter?
Oxidative stress happens when there are too many free radicals and not enough antioxidants to keep the free radicals in check. These free radicals can damage cells, proteins, and even DNA. Over time, this contributes to inflammation, accelerated aging, and even the breakdown of eye tissues — especially in breeds prone to genetic eye conditions like cataracts, glaucoma, and retinal degeneration.
In the eye, oxidative stress targets some of the most delicate structures: the cornea, the lens, the photoreceptors that process light within the retina. This can lead to cloudy vision, poor sight in dark conditions and at night, and even permanent vision loss.
Antioxidants are the body’s natural defense system against oxidative stress. They neutralize free radicals and protect cells from damage. Your dog’s body makes some antioxidants on its own, but as they age, or if they are genetically predisposed to certain conditions, those defenses may need a boost.
Antioxidants that support eye health are more specific and targeted to your dog’s eyes than most antioxidants found in dog food. It helps fill those gaps and gives your dog’s eyes the extra protection they need.
The Role of Antioxidant Supplements in Eye Health
Specific antioxidants are especially helpful in supporting vision. Learn more about the different kinds that are available, and what they can do. These are scientifically backed antioxidants and play an integral role in slowing the progression of vision changes due to aging or inherited eye conditions.
Grape Seed Extract
Grape seed extract is extracted from the seed of the grape and not the skin. This makes it safe for dogs to. The seeds contain a rich source of some of the strongest free radical scavengers in the eye, protecting the cornea, lens, and retina.
Lutein
Lutein is an oxycarotenoid antioxidant necessary for protection against free radical damage in the cornea, lens, and retina, acting as a sunscreen for the eyes as well as their skin.
Omega-3 Fatty Acids
Omega-3 fatty acids contain fatty acids EPA and DHA that cannot be made by the body and support retinal health. Omega-3 fatty acids support a healthy inflammatory response that helps alleviate dry eyes by improving tear quality and production.
Green Tea Leaf Extract
Green tea leaf extract is a great source of antioxidants, which can help protect the cornea, lens, and retina from oxidative damage. Green tea leaf extract contains flavonoids that improve the function of retinal ganglion cells — neurons that link the retina to parts of the brain that process visual input.
Rutin
Rutin is what’s known as a bioflavonoid. It’s found in citrus fruits, and aids in strengthening blood vessels and supports the circulation of blood in the eye and body. Blood vessels may weaken with old age, and supplementing with antioxidants, like Rutin, helps to support the normal functions of the cornea, lens, and retina.
Taurine
Taurine is an amino acid that’s important for the heart, eyes, and overall health. Dogs can produce taurine from key amino acids, deficiency can still occur. Taurine helps support normal cardiovascular health, helps protect the eyes from oxidative stress, and is important for retinal development. As our dogs age, the amount of taurine in their eyes diminishes, potentially decreasing the eye’s resistance to oxidative stress, making supplementation even more important in their senior years.
B Vitamins
B vitamins help protect cells in the retina. They help reduce the progressive damage that aging, environmental stress, and oxidation can cause. The B vitamins play an important role in cell growth and help to support a normal inflammatory response.
Vitamin C
Vitamin C is known to support the fragile capillaries in the retina, helps to protect against damage from UV light, and supports cornea and lens health.
Vitamin E
This fat-soluble vitamin comes in different forms. The form, D-alpha-tocopherol, has been selected as studies show this form to be more beneficial to the body and may benefit the cornea, lens, and retina by protecting critical fatty acids from oxidation. This powerful antioxidant supports vision, reproduction, blood, brain, and skin health.
Zinc
Zinc is a trace mineral that helps bring vitamin A from the liver to the retina to produce melanin, a protective pigment in the eye. Zinc is highly concentrated in the eye and helps to support the overall health of the cornea, lens, and retina.
Alpha Lipoic Acid
Alpha Lipoic Acid, or ALA, is a fatty acid and universal antioxidant that is made in the body and has the highest concentrations in the brain, eye, liver, and heart. ALA is important for maintaining healthy vision, normal liver function, and glutathione regeneration.
When to Start Supporting Vision Health
Many dogs don’t show signs of vision problems until 80% of their sight is already lost. Vision changes often start quietly — hesitating at stairs, missing treats tossed from the side, or acting more cautious in dim lighting.
Some signs that could point to your dog needing extra vision support could be their age. Dogs over the age of five, or any dog in the senior age range, can always benefit from vision support. Breeds that are prone to cataracts or other retinal conditions will also benefit.
Additionally, dogs that are diabetic can benefit from antioxidants that target dog’s ocular health. If your dog recently had eye surgery and is recovering, this is also a great time to think about antioxidants as a form of vision support.
A Trusted Solution: Ocu-GLO® Vision Supplement
Ocu-GLO® Vision Supplement’s patented proprietary blend combines Grape Seed Extract, Lutein, and Omega-3 Fatty Acids (GLO®), as well as Alpha Lipoic Acid to support normal vision development and long-term ocular health. Widely used by veterinary specialists, it provides proactive care in a single daily supplement.
The best way to support your dog’s vision health is by supporting their eye health before they begin to lose their vision. This proactive approach can help strengthen their eyes and keep the healthier for longer.
Whether you are looking to protect your dog’s vision for years to come or support an aging pet showing early signs of change, Ocu-GLO® is the most trusted and recommended eye supplement amongst veterinarians.
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This article is intended solely as general guidance, and does not constitute health or other professional advice. Individual situations and applicable laws vary by jurisdiction, and you are encouraged to obtain appropriate advice from qualified professionals in the applicable jurisdictions. We make no representations or warranties concerning any course of action taken by any person following or otherwise using the information offered or provided in this article, including any such information associated with and provided in connection with third-party products, and we will not be liable for any direct, indirect, consequential, special, exemplary or other damages that may result, including but not limited to economic loss, injury, illness or death.
