However, the eyes can easily become tired. Moreover, focusing one's visual field to control mouse functions is not a simple task, and the results are somewhat inconsistent. At the same time, in view of possible health concerns with exposure to infrared radiation, most researchers are less inclined to recommend this type of solution.
但眼睛很容易疲勞，加上眼控滑鼠的目光焦點不易控制，效果不太穩定，同時顧慮到紅外線對人體的傷害，多數研發者比較不推薦使用。