內視鏡手術提供許多優點，包括減少病患的疼痛、減少醫師誤傷及患者健康器官與組織的情形發生、加速病患的復原時間，但這種手術方式同時限制了醫生的深度知覺與視野，並需花費更多的時間來完成手術。近幾年來，3D 顯影技術開始應用在內視鏡手術上，然而使用3D影像會造成執刀醫生在手術中及手術後感到視覺疲勞與不適。本研究中的受試者皆為博士與碩士，分成兩組一共44位，透過操作兩種不同深度知覺需求的任務，來了解二維影像與三維影像對不同任務績效所造成的影響，結果顯示串珠轉移任務(較高深度知覺需求)在3D影像中有較好的績效，而在畫圈追蹤任務(較低深度知覺需求)中則是在2D影像中有較好的績效，閃光融合閾值與心智負荷在不同影像中沒有顯著的差異，而從主觀的問卷中可以得知，受試者在使用3D時感到視覺疲勞與不適。從此研究的結果可以推論出3D影像在需要較高深度需求的任務中，可以使操作者的績效更好，但是在只需要些許深度需求的任務中，3D影像不僅不能提供額外的資訊，甚至給予視覺上的疲勞與不適，進而造成受試者在三維影像上的操作績效受到影響。3D顯影技術雖然已經大幅的改善，但仍難無法提供一個優良的影像品質，因此造成受試者產生視覺上的不適，期許在不久的將來，3D影像可以大幅地降低視覺不適的情況發生。

Laparoscopic surgery provides many advantages, such as reducing pain, minimizing damage to healthy tissues, and faster recovery time. It also has some limitations mainly caused by inaccurate depth perception, limited field of view and more execution time required. Recently, 3D imaging technology had been applied to laparoscopic surgery. However, it brought some visual fatigue and discomfort during or after surgery. In this study, two tasks, peg transferring (more depth perception needed) and circle tracing (less depth perception needed), were used to be performed with two display conditions (2D and 3D) by students from different universities. The result indicated that performance of peg transferring was better in 3D compared with 2D imaging, as it showed lower movement time and errors with 3D imaging. On the other hand, the performance of circle tracing showed the reverse because participants performed worse in 3D imaging. However, no significant difference on decrease of CFF and mental workload was observed. The result from the subjective questionnaires showed performing tasks with 3D images induced more visual fatigue and discomfort. From the analytical results in present study, it can be concluded that 3D imaging had better performance for tasks that require more depth perceptions, but worse when the tasks require less depth perception. Even if the current developments in 3D technology had interesting promises, it is still premature to say the technology provides perfect image quality which is free of limitations. Therefore, to enhance the performance of laparoscopic surgery, it is worth looking forward to 3D imaging technology that can provide a better image quality with minimum side effects.

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