Abstract
Visual perception is achieved through multiple orienting eye and head movements, allowing change of gaze with brief short period of fixations. These periods of fixation are used to collect multiple snapshots to be integrated as a stable and coherent spatial representation of the environment, in accordance with attentional mechanisms. In a first lecture, I will present the objective of eye movements and their anatomical and physiological organization, with a specific attention to saccades and smooth pursuit. The lecture will be punctuated with video of clinical cases in order to emphasize the different steps necessary to assess clinically eye movements and their disorders and to illustrate the consequences of eye movement disorders. More precisely, physiology and pathology of infra and cortical smooth pursuit and saccadic control, with resulting disorders such as supranuclear palsy, cerebellar saccadic or smooth pursuit dysmetria and oculomotor apraxia will be presented.
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