ABSTRACT
In type I Duane’s retraction syndrome some Authors found a normal peak velocity of the adducting saccades, other ones reported a reduction of the adduction velocity. The usual surgical treatment may induce an important adduction deficit. The adduction and abduction saccadic movements were evaluated by means of a magnetic search coil in eleven patients suffering of type I DRS. Post-operative recordings were also obtained in five patients. In all patients disorders of the saccades on adduction were observed. The abduction saccades in the affected eye were recorded only when the sound eye was the fixing one. In the post-operative recordings any adduction deficit was clinically evident. Instead the abduction saccades, particularly when the affected eye is the driving eye, were improved.
