My son (almost five years old) has a Nexus card. He got it when he was an infant, so he did not get an iris scan. This creates some small hassles for us: every time we travel together, we have to go to "special services" because we cannot scan his iris at the machine.

Can we somehow add an iris scan to his existing Nexus record or whatever? If so, how do we do that?

We are in Toronto. We went to Pearson airport for the initial interviews and stuff. Do we need to take a separate visit to the airport to do this? Is it possible just to do it next time we are at the airport travelling?

Any information much appreciated! Thanks!