What is the present status of pars plana vitreous surgery in Zurich?

Although we have not changed the principles of our technique, increasing experience has made it possible to refine some details of the instrument set and the surgical technique. The electrical part of the vitreous stripper is safer, and a diathermy source for endodiathermy belonging to theinstrument set has been developed. Not only the slit lamp for the microscope, but also the fibre-optic illumination are in their final form. A new contract lens facilitates bimanual operation in the vitreous space. Progress in surgical technique has been made in the simultaneous extraction of the cataract in diabetic patients, in the extraction of non-magnetic foreign bodies, and in the combined vitreous-retinal detachment surgery.