[The effect of retrobulbar anaesthesia on visual evoked responses].

Background: Retrobulbar anaesthesia in ocular surgery leads to a temporary sensory blockade of the nervus opticus. The purpose of this study was to investigate the effect and duration of this anaesthesia on the visual system and to find out whether there is any relation to the patient's age, oral premedication, time of oculopression and the axial length of the operated eye.

Materials And Methods: A total of 57 patients with a mean age of 77.

Long-term endothelial cell loss after phacoemulsification: peribulbar anesthesia versus intracameral lidocaine 1%: prospective randomized clinical trial.

Purpose: To evaluate endothelial cell loss after phacoemulsification with posterior chamber intraocular lens implantation using peribulbar anesthesia or topical anesthesia combined with intracameral unpreserved lidocaine 1%.

Setting: Department of Ophthalmology, Charité, Humboldt-University of Berlin, Berlin, Germany.

Methods: Before and 20 months +/- 5.