Changes of Intraocular Pressure after Implantation of the Posterior Chamber Lenses

ABSTRACT

Preoperatively normotensive 211 cases of extracapsular cataract extraction (ECCE) and posterior chamber lens implantation in the capsular bag had intraocular pressure (IOP) measurements recorded 3 months postoperatively. Analysing the data of IOP level, surgical technique (planned extracasular cataract extraction or Kelman phacoemulsification), age, sex and corneal curvature, we could find the following results. 1. The mean change in intraocular pressure (postoperative IOP minus preoperative pressure) was -0.8 mmHg. 2. In 8 cases(3.8%) of 211 eyes postoperative IOPs were higher than 21 mmHg. 3. The higher preoperative IOP level was, the more the decrease of postoperative IOP was. 4. The changes in intraocular pressure was more significant in females than males. 5. There was no significant change in IOP level according to the age, surgical technique and corneal curvature.