This disclosure concerns an interactive head-mounted eyepiece with an integrated processor for handling content for display and an integrated image source for introducing the content to an optical assembly through which the user views a surrounding environment and the displayed content. The optical assembly comprises a reflective image display that generates and reflects image light to an optically flat film then to a curved partially reflecting mirror of the optical assembly that reflects a portion of the image light from the image source and transmits a portion of the scene light from a see-through view of the surrounding environment to the user's eye as a combined image. The optical assembly comprises a modular image source, wherein the modular image source is mounted in a frame of the eyepiece such that its position with respect to a user's eye can be adjusted.