jerk nystagmus

Jerk nystagmus is a type of involuntary eye movement where the eyes move faster in one direction than the other. This can occur normally, such as when feeling dizzy or watching fast-moving objects from a vehicle.1

Pathological jerk nystagmus can be present from birth due to issues with the retina, optic nerve, cataracts, or albinism. It can also occur without associated eye abnormalities (congenital motor nystagmus). Some individuals with congenital nystagmus find a specific gaze or head position that minimizes the movements and improves vision, known as the "null point".1

Acquired jerk nystagmus in children and adults can result from brain tumors, neurological issues, vascular diseases, multiple sclerosis, drug intoxication, or metabolic disorders. Treatment aims to address underlying causes, and in congenital cases, prisms in eyeglasses or surgery may help.1