What is nystagmus?

Nystagmus refers to involuntary movements of the eyes, which can manifest as a rhythmic oscillation or jerking motion. This condition can occur in various forms, such as jerk nystagmus or pendular nystagmus, and it can arise from a range of causes including vestibular disorders, neurological conditions, or as a side effect of certain medications. Understanding nystagmus is crucial in medical terminology, as it provides insights into the functioning of the visual and vestibular systems. The other options—loss of vision, increased eye pressure, and cloudiness of the lens—represent different ocular or visual impairments, but they do not accurately describe nystagmus.