[@FantasyChic]
Transcendence was a movie where a man is killed and he ends up inside a super computer, and ends up craving more and more power. My abilities to explain movies suck sometimes so for a detailed description: [url=https://en.wikipedia.org/wiki/Transcendence_(2014_film)]Click me[/url]

basically, he became a super computer who could control people with nano particles (which were able to heal massive wounds) so what I'm thinking is maybe she uses nano particles that last a limited amount of time allowing her to see things

OR theres the terminator style way where its like facial recognition. which would probably be the easiest way to do it now that i think about it.