title: [Long-term influence of pre-, intra-, and postoperative factors on the intraocular pressure in combined cataract and glaucoma surgery].
abstract: OBJECTIVE
  The aim of the study was to evaluate the long-term intraocular pressure (IOP)-lowering effect of combined cataract and glaucoma surgery and the influence of peri- and intraoperative factors upon it.
  
  
  METHODS
  In a prospective study 300 eyes received simultaneous phacoemulsification and covered goniotrephination at the same site. Intraoperative factors were monitored. Median follow-up was 24 months (8-45).
  
  
  RESULTS
  At the last postoperative control the mean IOP was 15.4 mmHg (14.7 mmHg in pseudoexfoliation glaucoma, n=78). Compared to preoperative values 60.3% had a 20% reduction of IOP to a level below 21 mmHg without eye medication. There was no significant rise in IOP during the follow-up time (8th-45th month). Of no or minimal influence (pmax=0.01) were the intraoperative factors, the IOP at the end of surgery, and postoperative complications (fibrin 6%, choroidal detachment 3.3%, hypotony <7 mmHg 5.5%, and blood beneath the whole bleb 5%). Of significant influence were a long lasting glaucoma ( p=0.003) and the usage of IOP-lowering eyedrops ( p<0.0001).
  
  
  CONCLUSIONS
  Combined cataract and glaucoma surgery is a safe alternative to single glaucoma surgery with similar results. Intraoperative factors have minimal influence on the IOP-lowering effect.
authors.affiliation: Augenklinik Herzog Carl Theodor, München.
authors.forename: N
authors.initials: N
authors.lastname: Botz
authors.forename: W
authors.initials: W
authors.lastname: Heider
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005500:Follow-Up Studies; D005901:Glaucoma / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure; D008875:Middle Aged; D018918:Phacoemulsification; D011183:Postoperative Complications; D011446:Prospective Studies; D013997:Time Factors; D016896:Treatment Outcome