June is here, and with it, the beautiful summer weather. Take advantage before it gets too hot by going for a run and join people all over the world by celebrating Global Running Day. We all know that running strengthens your heart, boosts mental clarity, and helps manage weight. But did you know it can also benefit your eyes?
That’s right. Regular aerobic exercise, including running, has a surprising range of benefits for your eye health and vision. While there are a few minor, but manageable drawbacks to be aware of, the overall effect of running on your eyes is overwhelmingly positive.
Here’s how lacing up your running shoes can help keep your vision sharp.
The Eye-Opening Benefits of Running
1. Improves Blood Circulation to the Eyes
Running enhances cardiovascular health, which in turn promotes better blood flow throughout your body, including your eyes. Healthy circulation is crucial for delivering oxygen and nutrients to the retina and optic nerve, helping maintain good vision.
2. Reduces the Risk of Eye Diseases
Research shows that regular aerobic exercise like running can lower the risk of several serious eye conditions:
- Glaucoma: Running may help reduce intraocular pressure, which can protect against glaucoma.
- Age-related Macular Degeneration (AMD): Improved blood flow and reduced inflammation may slow the onset or progression of AMD.
- Diabetic Retinopathy: Exercise helps regulate blood sugar and insulin levels, reducing the risk of diabetic eye complications.
- Cataracts: Some studies link consistent exercise to a lower chance of developing cataracts over time.
3. Lowers Intraocular Pressure
Lower eye pressure is especially important for people at risk of glaucoma. Running has been shown to temporarily decrease intraocular pressure. This protective effect can add up with consistent activity.
4. Anti-Inflammatory Effects
Exercise helps reduce chronic systemic inflammation, which is a factor in many age-related eye diseases. Less inflammation means better long-term eye health.

When Running Might Affect Your Eyes (Just a Little)
While running is great for your eyes overall, a few side effects can occur if you’re not careful:
Dry Eyes
Wind and dry outdoor conditions can increase tear evaporation, especially during long runs. This may lead to dry, irritated eyes.
UV Exposure
Sun exposure during runs without eye protection can raise the risk of cataracts, pterygium (surfer’s eye), and even cancer on the eyelids or the eye surface.
Blurry Vision
Some runners experience temporary blurred vision after a run. This can be due to dehydration or low blood sugar. It usually resolves quickly but is a reminder to stay hydrated and eat properly before hitting the trail.
Impact Injuries of Running
Outdoor runners, especially those on trails, can experience eye injuries from debris, insects, or branches. Proper eyewear helps prevent this.
Eye-Safe Running Tips
To get all the eye-health benefits of running while avoiding the risks, follow these simple strategies:
- Wear UV-protective sunglasses when running outdoors.
- Stay hydrated before, during, and after your run.
- Use lubricating eye drops if you’re prone to dry eyes.
- Eat eye-friendly foods rich in vitamins A, C, E, lutein, and omega-3 fatty acids (think leafy greens, salmon, carrots, and citrus).
- Switch to daily contact lenses if you run often. They are more hygienic and less likely to cause dryness.
Final Thoughts
Running isn’t just a great way to stay in shape. It’s also an underrated tool for preserving your vision. From improving circulation to reducing disease risk, your regular jogs may be doing your eyes more good than you realize.
So next time you head out for a run, remember this: you’re not just running for your heart and lungs. You’re running for your eyes, too.
Protect Your Vision and Eye Health with Optical Illusions
We offer:
- The best selection of sunglass and sunglass lenses with 100% UV protection to keep your eyes protected and ensure you look your best
- A carefully curated selection of Optase eye drops and eye care products to keep your eyes hydrated, that are both preservative and phosphate free.
- High quality contact lenses that maximize moisture retention while keeping your vision as sharp as it can be
At Optical Illusions: An Optometric Practice, we believe that everyone deserves to see clearly and have the best in eye health. Our comprehensive exams include:
- Screenings for ocular risk
- Advanced diagnostic imaging
- Personalized care plans
Schedule your appointment at 1 of our 4 conveniently located offices in San Jose, San Mateo, San Ramon, and Juneau.