Fig. 6.

Effect of cFN inactivation on pattern strabismus and dissociated vertical deviation (DVD) in monkey S2 (injection 8). Traces show spatial position of viewing (right eye) and nonviewing (left eye) eyes as the esotropic monkey performed horizontal or vertical smooth pursuit at 0.2 Hz. The nonviewing left eye is adducted relative to the viewing right eye, indicating overconvergence or esotropia. After cFN inactivation, the horizontal position of the left eye during vertical pursuit is closer to that of the right eye, indicating a decrease in the angle of esotropia. Change in esotropia with vertical gaze position is similar in both pre- and postinactivation vertical pursuit, indicating no change in V-pattern. Also, vertical (upward) deviation of the left eye relative to the right eye is similar in pre- and postinactivation horizontal pursuit, indicating no change in DVD.