is otherwise known as an eye tracker; normally an electronic device which photographs various eye movements (during specific conditions, such as an experiment) so that they can be analysed sequentially.

EYE-MOVEMENT CAMERA: "An eye-movement camera will track the physical movements of the eye in a human being, which can be recorded and then later analysed."
Cite this page: Nugent, Pam M.S., "EYE-MOVEMENT CAMERA," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/eye-movement-camera/ (accessed January 17, 2019).