Optometry (St. Louis, Mo.) · 2002
A 13-year followup of a case of Wallenberg's syndrome: first-person account and ocular motor abnormalities.
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Clavero Maria, Ciuffreda Kenneth J, Werner D Leonard, Tannen Barry
Аннотация
BACKGROUND: We present a 13-year followup of a case of Wallenberg's syndrome, including a first-person account and ocular motor abnormalities.
METHODS: Objective infrared eye-tracking systems were used to record horizontal and vertical eye movements binocularly under a variety of conditions.
RESULTS: Fixation in the dark along the midline remained as before, with vestibular jerk nystagmus continuously present. While saccades and pursuit to a visual target also remained the same as found earlier, fixation was somewhat worse, revealing not only saccadic intrusions but also a prominent right-jerk nystagmus.
DISCUSSION: The results suggest lack of additional oculomotor neural plasticity after the end of the initial 10-year test period, and furthermore reveal apparent subtle age-related changes in oculomotor responsivity.
METHODS: Objective infrared eye-tracking systems were used to record horizontal and vertical eye movements binocularly under a variety of conditions.
RESULTS: Fixation in the dark along the midline remained as before, with vestibular jerk nystagmus continuously present. While saccades and pursuit to a visual target also remained the same as found earlier, fixation was somewhat worse, revealing not only saccadic intrusions but also a prominent right-jerk nystagmus.
DISCUSSION: The results suggest lack of additional oculomotor neural plasticity after the end of the initial 10-year test period, and furthermore reveal apparent subtle age-related changes in oculomotor responsivity.