The present invention relates to a head-mounted display system (1) for controlling a medical imaging device (20), comprising: a head-mounted display (10) to be worn by an operator, comprising a display (12) configured to display a medical image with a predetermined center of view (121) and a command menu (122) providing at least a first set of commands (123) as distinct first command fields, a tracking system (14) to track a movement representative of the operator's eye (30) and/or head movement, wherein a command of the at least first set of commands (122a) of the command menu (122) is selectable based on the tracked eye and/or head movement, and a control device (40) configured to receive a selected command and to control the medical imaging device (20) accordingly.