Sixth Nerve Palsy

Written by Joe Bowman | Published on January 27, 2014
Medically Reviewed by George Krucik, MD, MBA on January 27, 2014

What Is Sixth Nerve Palsy?

Sixth nerve palsy is a disorder affecting the sixth nerve, which supplies the lateral rectus muscle. This ocular muscle is responsible for turning the eyeball outward, away from the nose. When a person has sixth nerve palsy, the eye begins to point inward toward the nose, often resulting in double vision. Sixth nerve palsy is sometimes known as abducens nerve palsy or cranial nerve VI palsy.

What Causes Sixth Nerve Palsy?

The most common cause of sixth nerve palsy in older adults and senior citizens is stroke. When sixth nerve palsy is present in children, the most common cause is trauma.

In rare cases, it is present at birth.

Other causes for sixth nerve palsy include:

  • viral illness
  • inflammation of the brain caused by viral illness
  • brain tumor
  • multiple sclerosis
  • diabetic neuropathy
  • intracranial pressure
  • migraine headaches
  • diabetic neuropathy
  • systemic hypertension

Who Is at Risk for Sixth Nerve Palsy?

There does not appear to be any gender or age group that is significantly more at risk. However, when sixth nerve palsy is the result of another condition, risk factors for that condition play a role in the likelihood a person will have sixth nerve palsy.

What Are the Symptoms of Sixth Nerve Palsy?

The most common symptom of sixth nerve palsy is double vision. Less common symptoms include headaches and pain surrounding the affected eye.

How Is Sixth Nerve Palsy Treated?

Sixth nerve palsy has been known to resolve on its own, without treatment. If inflammation of the sixth nerve is causing the problem, a doctor may prescribe corticosteroids. If double vision continues as the sixth nerve heals, doctors suggest wearing an eye patch.

Another option for realigning a person’s eyesight is prism spectacles. If the prism spectacles have not properly aligned the patient’s sight, he or she can have strabismus surgery. This surgery corrects the misalignment of the eyes.

What Is the Outlook for Sixth Nerve Palsy?

Prognosis for sixth nerve palsy depends on the underlying cause. When resulting from a viral infection, sixth nerve palsy usually resolves on its own.

When resulting from trauma, especially in children, sixth nerve palsy may not heal completely on its own. Improvement and recovery from sixth nerve palsy often take place during the first sixth months after onset.

When the underlying cause for the palsy cannot be determined, the chances are high that the patient will fully recover. However, there have been cases where an individual’s sight has been irreparably altered as a result of the palsy.

Was this article helpful? Yes No

Send us your feedback

Thank you.

Your message has been sent.

We're sorry, an error occurred.

We are unable to collect your feedback at this time. However, your feedback is important to us. Please try again later.

Show Sources

Read This Next

Recovery from Stroke: What to Expect After a CVA
Recovery from Stroke: What to Expect After a CVA
Learn what happens after a cardiovascular accident (CVA) or stroke, including recovery stats, possible complications, rehab programs, and getting back to work.
What Are the Different Types of Strokes?
What Are the Different Types of Strokes?
“Stroke” refers to three main types: ischemic, hemorrhagic, and transient ischemic. Learn the symptoms, warning signs, and ways to prevent each.
Diet Changes to Minimize Your Stroke Risk with AFib
Diet Changes to Minimize Your Stroke Risk with AFib
Stroke is a serious potential complication of atrial fibrillation. Learn about foods and supplements that can help reduce your stroke risk with AFib.
Time Is Brain: A Long-Term Timeline
Time Is Brain: A Long-Term Timeline
Learn the warning signs of a stroke and the importance of seeking urgent medical attention. Taking fast action will help limit damage and improve recovery time.
The Best Heart Disease Blogs of the Year
The Best Heart Disease Blogs of the Year
These heart disease blogs contain the best the Web has to offer on everything from medical advice to heart-friendly dinner menus.