such as to ensure that the inflatable membrane 302 is inserted sufficiently deep into the ear canal 318 or to avoid collisions with sensitive tissue such as the tympanic membrane in such embodiments the scanner element 308 may include a camera or other imaging device oriented toward the window 350 and the display 340 may be coupled to the camera by the scanning system 320 in order to display video images from the camera the camera or other imaging device may have an optical coating with an index of refraction matched to the index of refraction of the medium 310 at certain times such as during insertion of the inflatable membrane 302 into the ear canal 318 it may be desirable to have a view from the distal end 352 of the inflatable membrane 302 to facilitate manual navigation of the tip to facilitate this navigation the distal end 352 may include a fixture 360 in the interior 307 shaped and sized to receive an imaging device such as an endoscope or an otoscope and to align the imaging device to the window 350 in order to provide a view of the exterior through the window 350 with the imaging device the imaging device may be the scanner element 308 or may be an additional imaging device separate and independent from the scanning system 320 the display 340 may be coupled to the imaging device and configured to display video images.