fixational ocular movements

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• Fixational eye movement — Fixational eye movements (also known as fixational instability, retinal jitter) are small, involuntary eye movements that occur during visual fixation. There are three categories of fixational eye movements: microsaccades, ocular drifts, and… …   Wikipedia

• Ocular tremor — Ocular microtremor tracing with burst sections underlined Ocular microtremor (OMT) is a constant, physiological, high frequency (peak 80Hz), low amplitude (estimated circa 150 2500nm (1)) eye tremor. It occurs in all normal people even when the… …   Wikipedia

• Microsaccade — For other uses, see Eye movement (disambiguation). Microsaccades are a kind of fixational eye movement. They are small, jerk like, involuntary eye movements, similar to miniature versions of voluntary saccades. They typically occur during… …   Wikipedia

• movement — 1. The act of motion; said of the entire body or of one or more of its members or parts. 2. SYN: stool. 3. SYN: defecation. [L. moveo, pp. motus, to move] active m. 1. m. effected by the organism itself, unaided by external influences. 2. in… …   Medical dictionary

• Eye movement (sensory) — For other uses, see Eye movement (disambiguation). Eye movement is the voluntary or involuntary movement of the eyes, helping in acquiring, fixating and tracking visual stimuli. It may also compensate for a body movement, such as when moving the… …   Wikipedia