The Eyelink 1000 is a sophisticated eye-tracking device used to measure pupil size and gaze direction with high precision. To measure pupil size, the Eyelink 1000 uses infrared illumination and a high-resolution camera to capture detailed images of the eye. The device tracks the corneal reflection and the dark pupil to calculate the pupil diameter in real-time. The Eyelink 1000’s software analyzes these images, providing continuous and accurate measurements of pupil size. The high sampling rate and spatial resolution of the Eyelink 1000 make it an ideal tool for precise and reliable pupillometry.
