A review on visible-light eye-tracking methods based on a low-cost camera. - Alberto J. Molina-Cantero; Clara Lebrato-Vázquez; Juan A. Castro-García; Manuel Merino Monge; Félix Biscarri-Triviño; José I. Escudero-Fombuena (J. Ambient Intell. Humaniz. Comput., 2024)