Skew deviation

Skew Deviation is a rare ocular condition characterized by vertical eye misalignment. It is often associated with brainstem or cerebellar lesions, and can be a sign of serious neurological conditions.

Causes

Skew Deviation is typically caused by damage to the otolithic pathways in the brainstem or cerebellum. This damage can be due to a variety of conditions, including stroke, multiple sclerosis, brain tumor, or trauma to the head.

Symptoms

The primary symptom of Skew Deviation is vertical eye misalignment, which can lead to double vision or diplopia. Other symptoms can include head tilt, nystagmus, and oscillopsia.

Diagnosis

Diagnosis of Skew Deviation is typically made through a combination of clinical examination and neuroimaging studies. The Three Step Test, also known as the Parks-Bielschowsky Three Step Test, is often used to differentiate Skew Deviation from other causes of vertical eye misalignment.

Treatment

Treatment of Skew Deviation is primarily aimed at addressing the underlying cause of the condition. This can include medication, surgery, or physical therapy. In some cases, prism glasses may be used to help correct the eye misalignment.

See Also

• Strabismus
• Fourth nerve palsy
• Ocular motor nerve

References

Skew deviation Resources
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