A 13-year followup of a case of Wallenberg's syndrome: first-person account and ocular motor abnormalities.
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.


CONCLUSIONS
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.
Clavero
Maria
M
Escuela Universitaria de Optics y Optometria, Universidad de Valladolid, Instituto Universitario de Oftalmobiologia Aplicada, Valladolid, Spain.
Ciuffreda
Kenneth J
KJ
Werner
D Leonard
DL
Tannen
Barry
B
D005133:Eye Movements / Q000502:physiology; D005403:Fixation, Ocular / Q000502:physiology; D005500:Follow-Up Studies; D006801:Humans; D014854:Lateral Medullary Syndrome / Q000503:physiopathology*; D017120:Nystagmus, Optokinetic / Q000502:physiology; D009759:Nystagmus, Pathologic / Q000503:physiopathology*; D015840:Oculomotor Nerve Diseases / Q000503:physiopathology*; D011698:Pursuit, Smooth / Q000502:physiology; D015348:Vision, Binocular / Q000502:physiology