jerky; twitching
Jerky. ... See: saccadic movement. ... (05 Mar 2000) ... 
Type: Term Pronunciation: să-kad′ik Definitions: 1. Jerky. See: saccadic movement
saccadic Characterized by a series of quick, involuntary movements of the eyes when adjusting one's gaze while fixating on objects in sequence, as when reading printed materials.
adjective of or related to the rapid movement of the eyes between points of fixation