Abstract: A device for visually examining a generally inaccessible body cavity, such as the larynx or the like, including a mirror mounted upon an elongated support member for insertion and positioning within the cavity, a light transmitting means having a light receiving face positioned adjacent a source of the illumination outside the cavity and a light exit face positioned adjacent to the mirror within the cavity for focusing a small light beam upon a portion of the mirror. A clear aperture is provided in the mirror that is positioned in reference to the incident light beam to allow a portion of the light to pass through the mirror. The region directly behind the mirror is thus illuminated to permit the mirror to be rapidly and accurately positioned by the examiner.