In this study, the role of different 3D vision systems on the patient safety in the context of robotic surgery was studied. Clearly safety is the foremost importance in all surgical procedures. It is well studied in the clinical surgical procedures but the role of different 3D vision system in the context of patient safety is hardly ever mentioned. The assessment of the quality of the 3D images and role of force feedback was studied with two distinct methods (spatial estimation and depth perception) in two different vision systems (holographic and stereovision). The main idea in this study is to investigate quantitatively the role of the vision system in patient safety.