Proceedings: Cervical myelopathy treated by anterior decompression and fusion.

level, pupil reaction, and corneal reflex. However, there were many discrepancies in individual patients so that the vestibulo-ocular reflex afforded useful information additional to that obtained from traditional tests. Bilateral abnormal motor activity or absent pupil reactions were often associated with relatively unimpaired vestibulo-ocular reflex responses. There was no correlation between abnormal breathing patterns and impairment of the vestibuloocular reflex. Caloric tests were carried out in 100 patients within a day of admission. An impaired response correlated with a poor prognosis for recovery.