The defect is thought to lie in the gaze-holding smooth pursuit mechanisms.
Conditions which result in loss of central vision early in life are the commonest cause of pendular nystagmus:
Pendular nystagmus may be congenital.
Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.