Introduction
Introduction: This chapter introduces the concept of manually influenced eye dominance (MIED) and its significance in understanding hand-eye coordination. It reviews existing literature on eye dominance testing, highlighting the limitations of previous studies that assumed a fixed coupling between eye and hand dominance. The chapter introduces the Porta Test (PT) and a new Circular Test (CT) designed to investigate MIED, emphasizing the need to explore the influence of manual tasks on eye dominance in frontal gaze directions, a previously uninvestigated area.