Infantile nystagmus syndrome (INS) is an ocular motor disorder that presents at birth or early infancy.It is clinically characterized by involuntary and conjugated oscillation of the eyes,which often causes several complications such as amblyopia,lateral view,strabismus and torticollis.The etiology of INS is not fully understood,and this disease cannot be cured completely.This paper reviews the progress of research on the concept,etiology and pathogenesis,clinical manifestations,common examination methods,diagnosis and treatment of INS. (Chin J Ophthalmol,2013,49:653-660)

Nystagmus,congenital; Diagnosis; Treatment outcome; Infant