Looking For An Optometrist in Edmonton?

Top Causes of Blurry Vision

Edmonton Eye Doctors

26-10-2025

Blurry vision can be unsettling, whether it happens suddenly or gradually over time. It may be as simple as needing new glasses — or it could signal a more serious eye or health condition. If you’re experiencing blurry vision or blurred vision, it’s important to schedule a comprehensive eye exam with an optometrist in Edmonton. Below are the most common causes of blurry vision and what you can do about them.

1. Refractive Errors

Uncorrected refractive errors are the leading cause of blurred vision.

• Nearsightedness (myopia): Distant objects appear blurry.
• Farsightedness (hyperopia): Close objects blur.
• Astigmatism: Causes distortion or ghosting at all distances.
• Presbyopia: Age-related difficulty focusing on close objects, often starting around age 40.

Solution: An updated prescription from your eye doctor in Edmonton can bring back crisp, clear vision.

2. Dry Eyes

Alberta’s dry climate can cause dry eye syndrome, leading to fluctuating blurry vision, burning, and a gritty sensation.

Treatment: Artificial tears, lifestyle adjustments, or prescription drops from your optometrist can relieve symptoms and protect your cornea.

3. Digital Eye Strain

Prolonged screen use strains the eyes and causes temporary blurred vision, headaches, and fatigue - this is referred to as Computer Vision Syndrome

Tip: Follow the 20-20-20 rule — every 20 minutes, look 20 feet away for 20 seconds — and ask your optometrist about blue-light filtering lenses.

4. Cataracts

Cataracts cause the natural lens of the eye to cloud over, creating foggy or blurry vision, glare, and poor night vision.

Treatment: Cataract surgery restores clear sight, often improving vision beyond what it was before.

5. Diabetes and Diabetic Eye Disease

Fluctuating blood sugar can cause temporary or persistent blurry vision. Over time, diabetic retinopathy can damage blood vessels in the retina.

Action: Regular eye exams help your optometrist catch diabetic changes early and prevent vision loss.

6. Eye Infections and Inflammation

Conditions such as conjunctivitis (pink eye), keratitis, or uveitis can cause blurry vision, redness, and discomfort.

Advice: See an eye doctor promptly if you experience pain, discharge, or sensitivity to light.

7. Glaucoma

Glaucoma develops when high eye pressure damages the optic nerve, leading to gradual vision loss. Early on, you may notice blurry or hazy peripheral vision.

Note: Early detection by an optometrist in Edmonton can prevent permanent damage.

8. Macular Degeneration

This age-related disease affects central vision, making reading or recognizing faces difficult. Blurry or wavy vision is often one of the first signs.

Treatment: Lifestyle changes, vitamins, and specialized care from your eye care professional can help slow progression.

9. Retinal Detachment or Tear

If you see sudden blurry vision, flashes of light, or a shadow in your visual field, it could be a retinal detachment — a medical emergency that can lead to permanent vision loss.

Immediate Action: Seek urgent care from an eye doctor or emergency department.

10. Migraines and Visual Disturbances

Some people experience blurred vision or “visual aura” before or during a migraine. These visual symptoms are temporary but can be alarming.

Advice: If migraines frequently affect your vision, consult your optometrist and primary care provider.

11. Eye Injury or Foreign Object

Even small scratches or particles in the eye can cause pain and blurry vision.

Tip: Don’t rub your eye — see an optometrist immediately to prevent infection or further damage.

12. Medication Side Effects

Certain medications — including antihistamines, antidepressants, and blood pressure drugs — can cause temporary blurred vision or dry eyes.

Recommendation: Discuss symptoms with your doctor or eye care professional; they may adjust your prescription.

13. Corneal Conditions (e.g., Keratoconus)

When the cornea thins and bulges into a cone shape, as in keratoconus, light is scattered unevenly, leading to distorted or blurry vision.

Treatment: Specialized contact lenses or corneal cross-linking can help preserve clear sight.

14. High Blood Pressure

Hypertension can damage the retina’s delicate vessels, leading to hypertensive retinopathy and blurry vision.

Prevention: Regular health checkups and eye exams are key to protecting your vision.

When to See an Optometrist in Edmonton

You should schedule an appointment with an optometrist if you experience:

• Sudden or persistent blurry vision
• Double vision, flashes, or floaters
• Pain, redness, or light sensitivity
• Difficulty reading or focusing
• A history of diabetes, hypertension, or eye disease

Regular eye exams are the best way to keep your eyes healthy and detect problems early.

Clear Vision Starts with Professional Eye Care

Whether your blurred vision is caused by screen fatigue, dryness, or a more serious condition, professional eye care makes all the difference. Our experienced optometrists in Edmonton provide personalized exams and treatments to help you see clearly and comfortably again. Book your eye exam today with our trusted Edmonton eye doctors and take the first step toward sharper vision and lasting eye health.

Schedule An Appointment