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Sixth nerve palsy, or abducens nerve palsy, is a disorder associated with dysfunction of cranial nerve VI (the abducens nerve), which is responsible for causing contraction of the lateral rectus muscle to abduct (i.e., turn out) the eye. [1]
Sixth nerve palsy is treated by injecting the medial rectus muscle, thereby allowing the lateral rectus, paretic though it be, to stretch and lengthen the medial, while it shortens, so that, when the sixth nerve paresis subsides, alignment is improved. The toxin is also useful in other cranial nerve palsies affecting eye muscles.
In children, numerous nonspecific signs and symptoms may be present. [7] The increased pressure leads to compression and traction of the cranial nerves, a group of nerves that arise from the brain stem and supply the face and neck. Most commonly, the abducens nerve (sixth nerve) is involved. This nerve supplies the muscle that pulls the eye ...
Sixth nerve palsy causes the associated eye to deviate inward and has many causes due to the relatively long path of the nerve. Increased cranial pressure can compress the nerve as it runs between the clivus and brain stem .
Fissure changes, and the other associated characteristics of Duane's such as up or down shoots and globe retraction, are also vital when deciding whether any abduction limitation is the result of Duane's and not a consequence of VI or abducens cranial nerve palsy. Acquired Duane's syndrome is a rare event occurring after peripheral nerve palsy ...
Children with Möbius syndrome may have delayed speech because of paralysis of muscles that move the lips, soft palate and tongue root. However, with speech therapy, most people with Möbius syndrome can develop understandable speech. [5] Möbius syndrome has been associated with increased occurrence of the symptoms of autism. [6]
Between them these three men, whose combined age is 220, have enough children to stage a full (wildly confusing) production of Rent, with a few left over to help work the lights. Scientists say ...
Individuals suffering from complete horizontal gaze palsy cannot move either eye past the midline in a single direction. The eyes of a patient with pontine lesions involving the sixth nerve nucleus or PPRF may stray from the lesion's side. Patients with a left pontine lesion will be unable to look to their left and may have their eyes deviated ...