[Retraction nystagmus of vascular origin]

We report a case of a 42-year-old woman who was referred for diplopia. She appeared to have a convergence retraction syndrome and loss of vertical gaze. The clinical course led to a diagnosis of thromboembolic cerebrovascular event in the region of the posterior commissure on the basis of risk factors such as smoking and oral contraceptive use. The final outcome was rapidly favorable.