A method of controlling a head mounted see-through electro-optical device adapted to a wearer A method of controlling a head mounted electro-optical device adapted to a wearer, the method comprising: a wearer visual profile parameter providing step, during which the value of at least one wearer parameter related to the visual profile of the wearer is provided, an head mounted device function adapting step, during which the head mounted device function of the electro-optical device is adapted based on the value of the at least one wearer parameter.