This article reviews the recent literature on nystagmus and various aspects of the pathophysiology of congenital idiopathic nystagmus and nystagmus treatment. One paper shows a new classification of latent/manifest latent nystagmus based on eye movement recordings. Nystagmus associated with complex syndromes and with onset in childhood represents the subject of several important recent articles, as does acquired nystagmus. Nystagmus as a manifestation of the toxicity of pharmacological agents is becoming increasingly recognized. Important contributions have been made to the genetics of various forms of nystagmus that represent an essential feature of retinal diseases, such as congenital stationary night blindness, albinism, blue cone monochromatism, and achromatopsia.