Title: Skewed Diagnosis
Author: Don Rafael Wynn
Keywords/Main Subjects: Convergence; hypertropia; Exotropia; Rotary nystagmus; Vertigo; Stroke; Upbeat nystagmus; INO; Pontomedullary junction
Secondary CORE Category: Neuro-Ophthalmology/Evaluation of Diplopia/Supranuclear Causes of Diplopia
Diagnosis: Skew deviation, INO
Brief Description: This is a case presentation of an elderly male with sudden onset of constant, binocular diplopia and vertigo. Exam showed a left hypertropia and exotropia with rotary nystagmus. He was diagnosed with skew deviation and internuclear ophthalmoplegia (INO) due to a small stroke in the medial longitudinal fasiculus (MLF).
Series: Moran Eye Center Grand Rounds