Waking up to sudden blurred vision in one eye can be alarming and may indicate an underlying eye condition that needs immediate attention. You might assume you are tired, experiencing dry eyes, or need new glasses. However, sudden blurry vision in one eye should never be ignored, as it can sometimes indicate a serious eye condition or a medical emergency.
What Can Cause Sudden Blurred Vision?
Blurred vision may develop for several reasons, ranging from relatively minor problems to conditions requiring immediate treatment.
Possible causes include:
- Dry eye: An unstable tear film can temporarily make vision fluctuate or appear hazy.
- Corneal problems: Scratches, inflammation, or infections may affect visual clarity.
- Retinal conditions: A retinal tear or detachment can cause sudden vision changes, sometimes accompanied by flashes, new floaters, or a shadow across your field of vision.
- Acute glaucoma: A sudden rise in eye pressure can cause blurred vision, severe eye pain, redness, headache, nausea, or vomiting.
- Blood vessel or neurological problems: Certain circulation-related conditions, including a stroke affecting the visual pathways, can cause sudden vision loss or blurring.
The symptoms alone cannot reliably identify the cause, so professional assessment is important.
What Should You Do Immediately?
Seek urgent medical assessment if your vision suddenly becomes blurry in one eye, even if there is no pain. Do not wait to see whether the problem resolves on its own.
If you experience sudden significant vision loss, a curtain-like shadow, new flashes and floaters, severe eye pain, or blurred vision accompanied by weakness, facial drooping, difficulty speaking, or a severe headache, seek emergency medical care immediately. Call emergency services for possible stroke symptoms.
Avoid driving yourself while your vision is affected. Do not use leftover prescription eye drops or attempt to treat the problem without professional advice.
How Can an Eye Care Professional Help?
An eye care professional can assess your vision, examine relevant eye structures, and determine whether you need urgent specialist or hospital treatment. The appropriate care depends on the underlying cause, and prompt assessment can be crucial for protecting sight.
Contact Envision Optometry
If you notice a sudden change in vision, contact an eye care professional promptly. For severe or potentially sight-threatening symptoms, go directly to emergency care rather than waiting for a routine appointment.
Envision Optometry clinic details:
- Abbotsford: 1127 Sumas Way — 604-864-6451
- Port Coquitlam: 2370 Ottawa St — 604-464-7240
- Surrey: 7423 King George Blvd — 778-294-3937
