Any off-the-shelf camera capable of scanning eye movement can be used with Dasher, though the person must sit fairly still during the interaction.

• 注释：文章第一段末尾介绍，该软件可以和任何有扫描眼睛活动功能的照相机兼容，但是用户使用过程中必须尽量保持一动不动的姿势。