What kind of disease is idiopathic congenital nystagmus?

Idiopathic congenital nystagmus is an eye disease characterized by non-autonomous, rhythmic nystagmus.

Nystagmus can be divided into congenital and acquired. Congenital nystagmus can be divided into motor defect nystagmus and perceptual defect nystagmus. Idiopathic congenital nystagmus belongs to motor defect nystagmus. In most cases, it is caused by abnormal conduction of central nervous system. Patients can manifest as involuntary nystagmus and strabismus.

Idiopathic congenital nystagmus is mainly treated by surgery. Eye position is adjusted by intermediate zone shift to improve low vision and relieve symptoms of nystagmus.