| | Title | Description | Type |
|---|
| 51 |  | Vertical Gaze Paralysis | A patient is shown with up, down, and leftward gaze palsies as a result of a presumed right-sided high midbrain lesion. (He was encountered prior to the introduction of CT scanning, so that localization could not be verified). He had normal vestibulo-ocular reflexes. In addition, he had a curious ... | Image/MovingImage |
| 52 |  | Voluntary Nystagmus | In this video, a woman shows her ability to voluntarily induce an ocular oscillation. It is called "voluntary nystagmus", although the oscillation consist of back-to-back saccades, such as occurs in ocular flutter. Clues to the voluntary nature of this oscillation are mentioned. At times, however, ... | Image/MovingImage |
| 53 |  | Wall-Eyed Internuclear Ophthalmoplegia | Some patients with bilateral INOs are exotropic. Convergence is variable; it may be completely normal in both eyes, absent bilaterally, or present in one eye only. | Image/MovingImage |
| 54 |  | Whipples Mimicking PSP | A patient is shown with nuchal dystonic ridigity, profound retropulsion, limited range of horizontal saccades, an almost complete vertical gaze palsy, normal vestibulo-ocular eye movements, and apraxia of eyelid opening. His pendular convergence nystagmus was the clue that he had CNS Whipple's Dise... | Image/MovingImage |