Obviously, once the required accuracy is there, this stands to be a tremendous benefit to a variety of individuals and industries. While much of the focus has been on how this can impact smartphone users–potentially eliminating some of the safety concerns involved with using things like GPS apps while driving–the real benefit stands to be in the wide variety of disability uses, especially in using tablets. As an interesting aside, the app that researchers had to develop in order to gather data on eye movements also appears to have cross-over uses in the medical field, particularly in better understanding some forms of mental illness with control your device with eyes.