[Changes of intraocular pressure in healthy-eyed patients under neuroleptanalgesia in abdominal surgery (author's transl)].
Ocular pressure was measured in 60 patients under neuroleptanalgesia with three different modes of induction (N2O, ketamine, thiopentone), during abdominal operations lasting at least one hour. The effect of premedication, of three different induction agents and of decurarisation on intraocular pressure were tested. It became apparent that after premedication and during the induction stage a decline of intraocular pressure (IOP) occured but did not last longer than 60 minutes. Decurarisation had no influence on the IOP. The causes of these changes and discussed.