Provided is an ophthalmic observation/illumination set for adjusting illumination conditions and a working distance to the object of observation and illumination. set consists of a main optical lens and a couple of interchangeable illumination members that can be assembled in various combinations with the main optical lens so that a light emitted from one of the illumination members will intersect the optical element of the main optical lens or will pass to the object around the optical element of the main optical lens. The set also contains a common handle with batteries for supply of power to the illumination member connected to the main optical lens and an additional optical component such as a Barlow lens selected from a set of Barlow lenses of different curvatures or a fisheye lens.
