Idiopathic infantile nystagmus; Genetics foundation and clinical association.

Nystagmus is an involuntary, periodic eye movement caused by a slow drift of fixation of either jerk, pendular, or rotatory form. The clinical and molecular assessment of nystagmus can provide crucial elements for a state-of-the-art differential diagnosis. Herewith, we provide a comprehensive overview of idiopathic infantile nystagmus (IIN), one of the most common forms of IIN that is usually reached out by exclusion of a variety of underlying causes and considered as one of the main leading causes of visual debleating disorders in early childhood. [ABSTRACT FROM AUTHOR]