title: Deep sclerectomy for the treatment of exfoliation and primary open-angle glaucoma.
abstract: OBJECTIVE
  To retrospectively compare the efficacy of deep sclerectomy in the treatment of primary open-angle glaucoma (POAG) and exfoliation glaucoma (ExG).
  
  
  METHODS
  Deep sclerectomy with either collagen or hyaluronate implants was performed in 31 eyes (45%) with POAG and 38 eyes (55%) with ExG. Pre- and postoperative intraocular pressure (IOP) was recorded, as was the number of glaucoma medications used pre- and postoperatively in each group. The follow-up data referred to a mean period of 18 months (range: 2 weeks to 36 months).
  
  
  RESULTS
  At 18 months, complete success had been achieved in 56.3% of POAG eyes and 44.9% of ExG eyes. Qualified success had been achieved in 83.1% and 71.6% of POAG and ExG eyes, respectively. The mean IOP was 18.6 mmHg in POAG eyes and 16.3 mmHg in ExG eyes. YAG-descemetotomies were performed in nine eyes in each group. There were no statistically significant differences between the groups in IOP (except at 1 week postoperatively in favour of POAG; p = 0.05), success rates, need for postoperative glaucoma medication or number of complications. Reoperations were required in three (10%) POAG eyes and seven (18%) ExG eyes.
  
  
  CONCLUSIONS
  Deep sclerectomy is equally effective in controlling IOP in both POAG and ExG and has low rates of serious complications, even when the surgeon is inexperienced in the technique. Both survival rates and IOP control were similar between the groups, and there were no serious intra- or postoperative complications.
authors.affiliation: Department of Ophthalmology, University of Kuopio and Kuopio University Hospital, Kuopio, Finland. Petri.Rekonen@kuh.fi
authors.forename: Petri
authors.initials: P
authors.lastname: Rekonen
authors.forename: Tapio
authors.initials: T
authors.lastname: Kannisto
authors.forename: Tuomo
authors.initials: T
authors.lastname: Puustjärvi
authors.forename: Markku
authors.initials: M
authors.lastname: Teräsvirta
authors.forename: Hannu
authors.initials: H
authors.lastname: Uusitalo
mesh_terms: D000368:Aged; D017889:Exfoliation Syndrome / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D005902:Glaucoma, Open-Angle / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology; D007431:Intraoperative Complications; D008297:Male; D011183:Postoperative Complications; D012189:Retrospective Studies; D012599:Sclerostomy / Q000379:methods*; D016896:Treatment Outcome; D014792:Visual Acuity / Q000502:physiology