A device forming a combination ophthalmoscope and otoscope, having a housing (4) supporting a light source (10) and a plurality of lenses (8, 9), the light source (10) defining an illumination light path (14) which illuminates in use a region of interest (15), the housing having an aperture (12) defining a viewing light path (13) along which the region of interest (15) can be viewed, the lenses (8, 9) being mounted on a support (1) relative to the housing (4) so as to be moveable relative to the housing (1) so as to allow selection of a lens from the plurality of lenses (8, 9) to be disposed in the viewing light path, and in which the plurality of lenses form an ophthalmoscopy set (8) comprising at least one ophthalmoscopy lens and an otoscopy set (9) comprising at least one otoscopy lens.