Abnormality of ocular smooth pursuit

What it means

An abnormality of eye movement characterized by impaired smooth-pursuit eye movements.

Tracking eye movements consist of two different components, namely, smooth pursuit and saccades. Smooth pursuit, or just pursuit, is a class of rather slow eye movements that minimizes retinal target motion. Saccades are rapid eye movements that align the fovea with the target. Slow-pursuit eye movements are involved in tracking a slowly moving target after the saccadic system has placed the image of the target on the fovea.

Rare diseases that can present with this5

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Abnormal smooth pursuits · Disrupted ocular pursuit movements · Impaired smooth pursuit ocular movements · Irregular visual pursuit movements