[Stereoscopic microscope-spectacles for use in eye operations (author's transl)]

A magnification system newly developed by Zeiss on the basis of a Keplerian telescope permits, in connection with a direct-vision erecting prism, the design of stereoscopic surgical spectacles and thus a break into the microsurgical range. The magnification of 8.3X is just about the limit up to which muscular movement of the head is not disturbing, but on the other hand routine microsurgery, especially cataract and glaucoma surgery, is rendered possible.