Nystagmus and Saccadic Intrusion

Nystagmus is an involuntary eye movement where the eyes move rapidly back and forth, often making it difficult to see clearly. This can be vertical, horizontal, or rotary and can occur in response to certain conditions or as a standalone issue. Saccadic intrusion refers to unwanted eye movements that disrupt normal fixation when trying to focus on an object. This can result in occasional jumps or shifts in vision, making it challenging to maintain a steady gaze. Both conditions are studied in neuro-ophthalmology to understand underlying neurological issues and impacts on vision.