opinions Previews
Types of saccadic eye
movements
A.
Terry Bahill, Ph.
D.
, and B.
Todd Troost, M.
D.
The term saccade is applied to a variety of eye
movements, including saccadicrefixations, microsaccades, fast phases ofnystagmus, and fast...
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opinions Previews
Types of saccadic eye
movements
A.
Terry Bahill, Ph.
D.
, and B.
Todd Troost, M.
D.
The term saccade is applied to a variety of eye
movements, including saccadicrefixations, microsaccades, fast phases ofnystagmus, and fast phases
of other ocular oscillations.
Numerous clinical
and theoretical descriptions of saccades have resulted in a proliferation of named saccadic subtypes and clinical syndromes;these includepurely
descriptive phrases and those meant to imply
physiology orpathophysiology.
Among such terms
are hypometric saccades, dysmetric saccades, glissadic eye movements, slow saccades, overlapping
saccades, dynamic overshoots, closely spaced saccades, and pulseless saccades (figure 1).
From the
analysis ofquantitative eye movementrecordings
ofnormalindividuals and patientswithneurologic
diseases, and from the results ofcomputersimulations, one may describe saccadic eye movement
subtypes based on the responsible neurologic
control si
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