Internuclear ophthalmoplegia is a rare condition caused by injury to the medial longitudinal fasciculus in the brainstem. It usually occurs in conditions such as stroke or multiple sclerosis and is extremely rare after head injury. We report a case of unilateral internuclear ophthalmoplegia, which occurred after a minor head injury in a young male. His only symptoms were headache and diplopia. ...

Only a few cases with unilateral internuclear ophthalmoplegia have been reported presenting vertical nystagmus, and few of them provides convincing evidence for the paramedian tract neuron to be a vertical neural integrator. We report a patient who suffered from confined dorsal mid-upper pontine infarction showing unilateral internuclear ophthalmoplegia with upbeat nystagmus in primary position...

PURPOSE To report a case of pure isolated unilateral internuclear ophthalmoplegia from ischemic stroke, and to review its literature. METHODS A 55-year old man, with a history of long-standing diabetes mellitus, developed acute-onset left internuclear ophthalmoplegia. MRI revealed a small paramedian dorsal pontine infarct ventral and lateral to the aquaductus cerebri. Intracranial MR angiogra...

A 40-year-old female after a closed head injury presented with bilateral internuclear ophthalmoplegia. Attempted convergence was abnormal and MRI revealed the focal hemorrhage in the medial longitudinal fasciculus region by showing bright signal in the a pontomesencephalic region in the midline on both T1 and T2 weighted images. The patient regained normal ocular mobility after six months of th...

A 50 year old man developed tonic-clonic seizures while receiving cyclosporin A after orthotopic cardiac transplant. The seizures resolved after cessation of cyclosporin A. Thirteen months later, he developed diplopia from bilateral internuclear ophthalmoplegia while receiving intravenous FK506. A temporal association was found between his symptoms and the serum FK506 concentrations. Withdrawal...

A midline experimental lesion separating the medial longitudinal fasciculi at and below the level of the abducens nuclei without damaging either fasciculus at the level of the nuclei has produced defects of ocular motility resembling those of clinical internuclear ophthalmoplegia. Electromyographic recordings during lateral gaze demonstrate: (1) lack of inhibition of the lateral rectus muscle i...

Wall-eyed monocular internuclear ophthalmoplegia (WEMINO) with contraversive ocular tilt reaction has not been previously reported. A 71-year-old woman suddenly developed blurred vision. Examination revealed left internuclear ophthalmoplegia, left exotropia, right hypotropia, and rightward head tilt. Magnetic resonance imaging showed a tiny infarction at the area of the left medial longitudinal...