Most people know that exercise benefits the heart, brain, and body weight — but research increasingly shows that regular physical activity also has significant benefits for eye health. At Eyecare Optometry of Redondo Beach, we encourage our patients to think of exercise as part of a complete eye care plan.
Reduces Risk of Glaucoma
Multiple studies have found that regular aerobic exercise lowers intraocular pressure (IOP) — the main risk factor for glaucoma. Moderate-intensity exercise such as brisk walking, cycling, or swimming can reduce IOP by up to 20%, offering a meaningful protective effect, especially for patients with elevated pressure or a family history of glaucoma.
Lowers Risk of Diabetic Retinopathy
Exercise improves insulin sensitivity and helps control blood sugar levels — both of which are critical for preventing diabetic retinopathy, the leading cause of blindness in working-age adults. Patients with diabetes who exercise regularly have significantly lower rates of retinal damage than sedentary patients.
Protects Against Macular Degeneration
Research published in the British Journal of Ophthalmology found that people who exercised regularly were significantly less likely to develop wet AMD (age-related macular degeneration) — the most severe form of the disease. Exercise appears to reduce vascular inflammation and oxidative stress that contribute to AMD.
Improves Circulation to the Optic Nerve
Cardiovascular exercise increases blood flow throughout the body, including to the optic nerve and retina. Better circulation means better delivery of oxygen and nutrients — and more efficient removal of waste products — supporting overall retinal health.
Tips for Eye-Healthy Exercise
- Wear UV-protective sunglasses during outdoor exercise
- Use protective eyewear for racquet sports, cycling, and contact sports
- Stay hydrated — dehydration can worsen dry eye symptoms
- Take breaks from screens during indoor workouts