What does nystagmus refer to?

Nystagmus refers to involuntary eye movement, characterized by a rhythmic oscillation of the eyes. This condition can manifest as a result of various factors, including neurological issues, vestibular system problems, or as a reaction to certain medications. The involuntary movements can be horizontal, vertical, or rotary and may affect the ability to maintain steady vision. Understanding nystagmus is essential in optical training, as it can significantly impact a person's visual perception and overall visual acuity. Recognizing and addressing such conditions is crucial for providing appropriate care and guidance to individuals experiencing them.