Method for managing a head-mounted display, associated computer program product and associated head-mounted display

A method for managing a head-mounted display (HMD) having a predetermined field of view (FOV) and a predetermined axis of sight (AV) and configured to display a plurality of graphic messages, said method comprising the following steps implemented when said head-mounted display is being worn by a user (U) in a predetermined environment (EP) comprising a plurality of information interfaces (IN1-IN6):

• A1. determining a first datum (D1) relating to a position and orientation of a head of said user with respect to said environment based on information (IS) relating to a spatial arrangement of said environment (EP);
• B. modifying a brightness of said head-mounted display and/or adjusting said graphic messages, depending on a dataset containing the first datum and containing information (II) relating to said interfaces.