Abducens nerve palsy
Abducens Nerve Palsy
Abducens nerve palsy (pronounced: ab-DOO-senz nurv PAL-zee), also known as sixth nerve palsy or lateral rectus palsy, is a neurological condition that impairs the function of the abducens nerve, one of the cranial nerves responsible for eye movement.
Etymology
The term "abducens" is derived from Latin, meaning "to lead away". This is in reference to the nerve's primary function, which is to control the lateral rectus muscle of the eye, leading the gaze away from the nose.
Symptoms
The primary symptom of abducens nerve palsy is diplopia, or double vision, when looking to the side. This is due to the affected eye's inability to turn outward. Other symptoms may include strabismus, or misalignment of the eyes, and esotropia, where the eye turns inward.
Causes
Abducens nerve palsy can be caused by several factors, including brain tumors, strokes, traumatic brain injuries, and infections that cause inflammation in the brain. It can also be a complication of diabetes.
Diagnosis
Diagnosis of abducens nerve palsy typically involves a thorough neurological examination, including tests of eye movement. Imaging tests such as MRI or CT scans may also be used to identify any underlying conditions causing the palsy.
Treatment
Treatment for abducens nerve palsy primarily involves addressing the underlying cause. This may involve medication, surgery, or other treatments depending on the specific cause. In some cases, physical therapy may be used to help manage symptoms.
See also
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