Sixth Nerve Palsy: Causes, Symptoms, and Treatment
Sixth nerve palsy (abducens palsy) occurs when the sixth cranial nerve is damaged, causing weakness/paralysis of the lateral rectus muscle (moves eye outward). The affected eye turns inward (toward the nose), causing difficulty looking outward. Other symptoms: double vision (diplopia), eye pain, drooping eyelid (ptosis).
Causes
- Trauma (head injury, blow to eye)
- Brain tumors
- Aneurysms
- Diabetes
- Multiple sclerosis
- Guillain-Barré syndrome
- Myasthenia gravis
Treatment
Depends on underlying cause. May include surgery, eyeglasses, or prisms for double vision.
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