Here's looking at ... uh ... never mind.
So, they've devised a way to photograph your eye and determine exactly what you're looking at. They better not take this sucker to the beach, that's all I gotta say.
Anyway, they think they can extend this process so that they can analyze old photos of historical figures, say JFK, and determine exactly where they were looking and what precisely they were looking at. Do we really need all this technology to determine that Jack was looking at Marilyn Monroe's chest?