The authors investigated changes of the intraocular pressure after non-complicated phacoemulsificationwith implantationof anintraocular lens of different types (OMMA, silicone, Acrysof®) in 40 patients. From the results it is obvious that in some patients already 4 hours after surgery the intraocular pressure rises to an average of 31±17 mm Hg. The magnitude of the intraocular pressure was not influenced by the size of the surgical wound nor the type of intraocular lens. In values below 30 mm Hg the authors recommend merely follow up of the patients as they assume that these values have a positive impact on closure of the tunnel incision. In the differential diagnosis it is important to consider the post-operative inflammatory reaction, the absorption reaction of residual viscoelastic material, pupillary block while the lenticular capsule is intact and undiagnosed glaucoma. In valuesabove30mmHgthe authorsrecommendadministrationof beta-blockers, Diluran® and antiphlogistics.

        Key words: intraocular pressure, phacoemulsification