Abby: I can't shut my brain off. I keep thinking, why is the dopa at 17 instead of 20 and why don't they change the tube position? I can't see his eyes. Do you know what color they are?
Luka: They're blue.
Luka is actually teasing Abby in this scene; she's forgotten that Euro-American infants are generally born with silver-blueish eyes that change to their permanent color at approximately six month of age.