A father's little boy sits in a line of cataract patients, all bearing a handwritten I.D. number taped to their foreheads. They are waiting for their turn on the operating table, already wearing blue medical gowns with dark plastic bags wrapped around their feet.
The father and the boy listen as the eye nurse explains that he will be inserting a needle behind the eye and that it will hurt, but only for a moment. “You must be very still,” he is told.