The direct mail campaign targets small- to medium- sized creative businesses in the central London area.
"Our research has shown that many businesses still think that sandwiches are the only lunchtime option for internal meetings. The aim of the campaign is to suggest a more attractive, healthier and innovative option," Martin Amor, a partner at Feel, said.
The mail-out consists of a full-sized eye chart, which reveals that recipients are suffering from "sandwichitis", a form of short-sightedness, and suggests that sushi could be a cure.
The campaign was written by Rob Fippard and art directed by Victoria Gallardo.