Which of the following best defines the "Saccade"

D i.e. Abrupt involuntary rapid eye movements Types of Eye Movements Versions Vergence Duction Sacadic Pursuit Voluntary/Involuntary Both eyes open, attempting to fixate a target, and moving in the same direction Both eyes open, fixing a target but moving in opposite directions synchronously, e.g. convergence or divergence Only one eye is open, the other covered or closed Abrupt, involuntary, quick fixation movements Q Slow following movements Voluntary and Involuntary movements