Both clear corneal and scleral incisions were safe in combined phacoemulsification and vitrectomy. Eyes with smaller clear corneal incisions and foldable IOLs had less postoperative inflammation and PCO.

Intraocular use of the waterjet with direct effect of the stream with these pressures is not justifiable. Instruments for waterjet phacoemulsification should be developed which pose no danger to the corneal endothelium and lens capsule.

The results show the possibility of improvement of cataract surgery by using the water jet. Further studies are necessary to adapt this technique to routine surgery in humans.

The waterjet pressure should not be over 4 bar during polishing of the posterior capsule.

The availability of conventional ultrasonic tools provides the possibility to achieve a fast first documentation of the extracranial vessels in a lot of inflammatory and arteriosclerotic diseases.