Two factors affecting saccadic amplitude during vergence: the location of the cyclopean eye and a left-right bias.


Saccades occurring during vergence have been reported to differ in amplitude depending on whether the saccade drives the eyes leftward or rightward. Furthermore, this difference varies in degree and direction among individuals. We examined two explanations of the variation--that it is the result of the cyclopean eye being nearer to one eye, and that it is… (More)