Home treatment typically resolves these issues.

However, several conditions that cause sudden blurry vision are a medical emergency.

For example, sudden blurry vision could be a stroke.

Potential Causes of Sudden Blurred Vision

Verywell / Laura Porter

With this, it may appear as if you are peering through a fog.

Conditions That Require Immediate Treatment

Several conditions that cause blurry vision need immediate care to avoid complications.

Some are serious enough to require emergency medical treatment.

If left untreated, they can cause severe injury, permanentvision loss, or even death.

Stroke:Sudden blurred vision can be due to a stroke.

In addition to blurred vision, light sensitivity, seeing double, and even sight loss may occur.

Also, look for flashing lights, floaters, a persistent shadow, or sudden loss of side vision.

While less common, it is also possible to experience postpartum preeclampsia after the baby is delivered.

Postpartum preeclampsia can occur within 48 hours to six weeks post-delivery.

Concussion:Aconcussionis a blow to the head that causes the brain to move in the skull.

Symptoms such as blurred vision can occur right after the injury or appear hours or days later.

Injuring the iris or pupil can cause blurry vision, light sensitivity, and pain.

Corneal abrasion:A corneal abrasion is a scrape on the cornea’s surface that can suddenly blur vision.

A fingernail, dirt particles, or a ripped contact lens can cause it.

The eye can also become red, painful, and sensitive to light.

Infections

Eye infections can cause several symptoms, including blurry vision.

Most infections won’t get better on their own.

Endophthalmitis:This is an often rapidly progressing bacterial infection that causes inflammation in the whites of the eye.

Keratitis:Keratitisis inflammation of the cornea, the clear outer layer covering the front of the eye.

It can cause blurry vision, swelling, redness, pain, and sensitivity to light.

These are conditions in which your immune system attacks healthy eye tissue.

The inflammation can cause vision issues, pain, and redness.

Hypoglycemia:Hypoglycemiais low blood sugar.

Double or blurry vision is one of several symptoms of low blood sugar.

High sugar levels can weaken blood vessels and damage the retina.

Dry eyes:Your tear film helps to keep your eyes moist.

Multiple sclerosis:Withmultiple sclerosis, the immune system may attack the optic nerve, causing optic neuritis.

Migraine:Some people who getmigrainesmight experience migraine with aura, which usually comes on before a migraine attack.

Eyestrain:This occurs if you’ve been staring at your setup for too long.

With your eye muscles weary, the result may be suddenly blurred distance vision.

Other symptoms accompanying digital eye strain include headache, dry eyes, and even neck and muscle aches.

The good news is these can usually be addressed with glasses or contact lenses.

Treatment

Deciding what to do about blurry vision will vary depending on the cause.

Surgical interventions may also be necessary.

Several conditions often require surgery for treatment.

August 3, 2019.

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