To follow moving objects, humans use a combination of smooth pursuit eye movements and saccadic ones to realign the target if necessary. This thesis addresses the first kind of eye movement. Related work shows, how moving backgrounds or distractors influence smooth pursuit eye movements. However, it is uncertain how objects which intersect the trajectory of the moving target impact these kinds of eye movements. In this regard, we conducted a study to investigate how different factors impact these. At first, we implemented a software which creates video stimuli for the study. We researched three different aspects: (a) target velocity, (b) horizontal and vertical trajectories and (c) the number of distractors. Our results show that the target speed had an impact on people's performance of smooth pursuit eye movements. We show that this had a significant influence on multiple dependent variables, like the offset between the gaze point and the actual position of the target, the time the participants looked at the target and the transitions from the target to any distractor. The two remaining independent variables (number of distractors and axis) did not have a high influence on the performance of the participants.