Other groups, such as one at Fengchia University, have independently developed optical pupil trackers. With this device, the user wears a head-mounted monitor, and by staring at an on-screen command for half a second can use the computer to perform various tasks, such as dialing a phone number. By using the device with voice synthesis software, the user can even produce sounds.
其他如逢甲大學也自行研發出「光學式瞳孔追蹤器」，使用者只要戴上「頭配顯示器」，眼睛緊盯螢幕指令 0.5 秒，就可操作電腦撥電話、下指令，在語音軟體的配合下，還可發出聲音。