EYE-MOVEMENTS

Recent discoveries emanating from basic electrophysiological, anatomic al, and pharmacological studies have implications for the diagnosis an d treatment of clinical disorders of eye movements caused by disease a ffecting the brainstem and cerebellum, Electrophysiological studies ha ve better defined the role of the superior colliculus in programming o f saccades, and the nucleus reticularis tegmenti pontis in saccade-ver gence interaction. Pharmacological inactivation studies have demonstra ted the important role played by gamma-aminobutyric acid in the normal control of gaze and lead to trials of new agents in the treatment of nystagmus.