Brief review on nystagmus. It is defined as involuntary rhythmic oscillatory movements. Which is fine medium coarse vertical, horizontal and pendular. The classification of ocular and fixational eye movement can be physiological and spontaneous physiological. The optokinetic nystagmus spontaneous is occupational central defective vision are following: 1. Total blindness. 2.
Lesions of central nerves system and spinal cord. 3. Vestibular and labyrinthine. 4. Congenital and idiopathic. 5. Voluntary and hysterical.
