1. What is nystagmus in babies? Baby nystagmus refers to the involuntary rapid shaking of the eyes of infants and young children, which usually occurs when the eyes follow the movement. This phenomenon is medically known as \”nystagmus\” or \”visual tremor\” and is a neurological abnormality. 2. Causes of nystagmus in babies 1. Congenital factors: such as genetics, infection during fetal period, etc. 2. Neurodevelopmental abnormalities: such as cerebral palsy, brain injury, etc. 3. Influence of drugs or poisons: such as drug overdose, alcohol poisoning, etc. 4. Eye diseases: such as strabismus, amblyopia, etc. 3. How to judge whether the baby has nystagmus? 1. Observe whether there is