Video 4.25 Three cases of internuclear ophthalmoplegia (INO) due to stroke from Neuro-Ophthalmology and Neuro-Otology Textbook

: This video shows 3 patients with vascular risk factors who suffered strokes of the MLF resulting in unilateral INO in each case. In the second case, INO was diagnosed status post cardiac catherization and MRI was found to be normal. In the third case, the patient had a clear left medial rectus palsy several days prior, but at the time of this exam, there was no adduction paresis and only a subtle adduction lag OD with horizontal saccades. Number of Videos and legend for each: 1, Three examples of INO in stroke. - - : This video shows 3 patients with vascular risk factors who suffered strokes of the MLF resulting in unilateral INO in each case. In the second case, INO was diagnosed status post cardiac catherization and MRI was found to be normal. In the third case, the patient had a clear left medial rectus palsy several days prior, but at the time of this exam, there was no adduction paresis and only a subtle adduction lag OD with horizontal saccades. https://collections.lib.utah.edu/ark:/87278/s65t6v5