title: Clinical effect of improved viscocanalostomy for the treatment of primary congenital glaucoma.
abstract: OBJECTIVE
  To evaluate the clinical effect of improved viscocanalostomy in patients with primary congenital glaucoma.
  
  
  METHODS
  Retrospective analysis of improved viscocanalostomy was performed on 51 eyes of 42 patients with primary congenital glaucoma. The outcome evaluation included postoperative intraocular pressure(IOP), corneal diameter, cup/disc ratio and complications. All patients were followed up at week 1, month 1, 3, 6 and 12.
  
  
  RESULTS
  The results revealed that postoperative IOP was decreased from (38.57±13.61)mmHg to (10.53±3.91)mmHg, (14.89±5.26)mmHg, (15.42±5.11)mmHg, (13.82±3.46)mmHg, (13.16±5.29)mmHg at follow-up time of 1 week, 1, 3, 6, 12 months (P<0.001). The postoperative corneal diameter was decreased significantly (P=0.002); The mean cup/dish ratio wasn't significantly different (P=0.148) before and after the surgery, the cup/dish ratio of successful surgery was evidently decreased (preoperative 0.7±0.2, postoperative 0.6±0.3, P=0.007), but the complications like as unformed anterior chamber were not observed. The mean follow-up period was 12 months.
  
  
  CONCLUSIONS
  Improved viscocanalostomy improves the clinical effects of the patients with primary congenital glaucoma, such as higher success rates, lower postoperative mean IOP and fewer complications.
authors.affiliation: Department of Ophthalmology, Shengjing Hospital, China Medical University, Shenyang 110004, Liaoning Province, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Yu
authors.forename: Zhi-Li
authors.initials: ZL
authors.lastname: Liu
authors.forename: Lei
authors.initials: L
authors.lastname: Cao
authors.forename: Qing-Zhu
authors.initials: QZ
authors.lastname: Nie