Micro Eye Movement Identification

We tested iris based identification.  Here another biometric approach I had not seen, which claims better accuracy:

DeepEyedentification: identifying people based on micro eye movements   by Ingrid Fadelli  in TechExplore

Past cognitive psychology research suggests that eye movements can differ substantially from one individual to another. Interestingly, these individual characteristics in eye movements have been found to be relatively stable over time and largely independent of what one is looking at. In other words, people present different patterns in the way they move their eyes and these unique 'eye movements' could be used as a means for identification.  ....  "