Brief description
In the short story "Maskeløs" (maskless), a man walks through an empty town to visit a friend he hasn't met in person since they were children playing together in "trad" reality. The story relates his walk to his friend's house. When the heavily polluted rain gets heavier he scans his eyeball to enter the underground, and is relieved to escape the outdoors.
There is another example of iris scanning to enter a Maxibrand building in the next short story in the collection, on page 66 in "Et beger for din levende sevje", but this situation with the man escaping the dangerous outdoors is more representative of the feel of this collection of stories.