Juan E. Cedrún-Sánchez, PhD, is a professor in the Department of Optometry and Vision at the Complutense University of Madrid (Spain). He serves as a national visual classifier for the Spanish Sports Federation for the Blind and the Spanish Paralympic Committee. He is a researcher with the Applied Vision group in the fields of health sciences and biomedicine, specializing in visual impairment, neurorehabilitation, visual psychophysics, neuroscience, and the development of new vision-related technologies.