The article presents the possibilities of use of eye-tracking technology in educational research. It combines a theoretical account of the basis and mechanism of eye movements, methods of tracking them, and finally the actual technology of eye-tracking. Then, in the second section, it builds on the results of a review study presented in two steps. First 94 foreign empirical research reports from the field of education were identified, and then one of the research fields – studies conducted directly in the classroom during real teaching, was presented in detail using illustrative examples. The aim of both sections is to familiarise the Czech and Slovak reader with the theme of eye-tracking and through selected studies to illustrate and show that eye-tracking has a place in educational research.