A device mount for mounting a vision enhancement device to an article worn on a user's head includes a first adjustment member operable to move a mounted vision enhancement device in a cranial-caudal direction with respect to the user. A second adjustment member which extends from the first adjustment member is operable to move a mounted vision enhancement device along a medial-lateral adjustment axis with respect to the user. A third adjustment member includes an extension arm extending from the second adjustment member that rotates with respect to the medial-lateral adjustment axis of the second adjustment member. A helmet apparatus includes a device mount and power supply that are offset from an anterior-posterior axis of the helmet in a counterbalancing arrangement.