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About Ocular Misalignment

Twelve pairs of cranial nerves are located in the back of your brain, each with a different function related to the sensation and motion of the head. In cranial neuropathy, one or more of these nerves is damaged, leading to functional impairment. Specifically, the third, fourth, and sixth cranial nerves participate in eyeball movement by extraocular muscle control, and damage to these nerves can cause ocular misalignment. If several cranial nerves are affected, the condition is known as multiple cranial neuropathies (MCN). In some cases, symptoms of cranial neuropathy can get better with time by treating the underlying condition, other times nerve damage can become permanent.

Types of Ocular Misalignment

Different types of ocular misalignment treated at UT Health Austin’s Mitchel and Shannon Wong Eye Institute are defined by which cranial nerve is affected. These misalignments include:

  • Third nerve palsy. This condition affects the third cranial nerve. This nerve helps manage muscles that control eye movement as well as the size of the pupil.
  • Fourth nerve palsy. This is also called superior oblique palsy. It affects the superior oblique muscle, which helps to rotate your eyes inward and down.
  • Sixth nerve palsy. This is also called abducens nerve palsy. It affects the lateral rectus muscle, which helps to move your eyes outward.

Symptoms of Ocular Misalignment

The varied forms of ocular misalignment can cause different symptoms depending on which the location and type of nerve damage that occurs.

Symptoms may include:

  • Eyelid sag or droop
  • Vision changes
  • Double vision
  • Trouble moving the eye
  • Pupil appearing larger than normal
  • Abnormal eye movement

Risk Factors for Ocular Misalignment

Damage or paralysis of cranial nerves leading to ocular misalignment can result from various causes such as trauma, vascular disease, intracranial tumors, aneurysm, and other conditions.

Risk factors of ocular misalignment may include:

  • Diabetes
  • Stroke
  • Head injury
  • High blood pressure
  • Smoking
  • Obesity
  • Lack of regular exercise and healthy diet

Treating Ocular Misalignment at UT Health Austin

A careful eye exam and additional tests, including imaging may be used to determine if your symptoms are related to any underlying brain condition. While there is no cure for migraine with aura, your ophthalmologist is well-versed in the most current, evidence-based treatment recommendations including lifestyle adjustments, medications, and more to control your symptoms and improve your overall quality of life.

Care Team Approach

A careful eye exam, additional neurological testing, imaging, and other tests may be used to determine the underlying cause of your symptoms and if multiple cranial neuropathies are present. Treatment depends on what is causing your cranial neuropathy and which nerve or nerves are being affected. Your healthcare provider will work with you on determining the best course of action and is well-versed in the most current, evidence-based treatment recommendations, which may include lifestyle adjustments, medications, surgery, or treatments.

Learn More About Your Care Team

Mitchel and Shannon Wong Eye Institute

Health Transformation Building, 1st Floor
1601 Trinity Street, Bldg. A, Austin, Texas 78712
1-833-UT-CARES (1-833-882-2737)
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