title: Dilation and probing of Schlemm's canal and viscocanalostomy in pediatric glaucoma.
abstract: OBJECTIVE
  To describe the authors' experience using a novel surgical technique for treatment of childhood glaucoma.
  
  
  METHODS
  Medical records of 24 consecutive patients and 39 eyes that underwent dilation and probing of Schlemm's canal and viscocanalostomy between September 2002 and June 2008 were reviewed. Surgical success was defined as an intraocular pressure (IOP) of less than 23 mm Hg with or without glaucoma medication and without further surgical intervention.
  
  
  RESULTS
  Mean age at surgery was 66 ± 66 months, with a mean preoperative IOP of 40.4 ± 10.2 mm Hg. Surgical success was achieved in 27 of 39 eyes (69%) with an average follow-up of 22 months. In patients without history of previous surgery and the diagnosis of primary congenital or juvenile glaucoma, surgical success was achieved in 17 of 19 eyes (89%) with an average follow-up of 20 months. There were no serious surgical complications associated with this procedure.
  
  
  CONCLUSIONS
  Goniosurgery with dilation and probing of Schlemm's canal in combination with viscocanalostomy appears to be a safe and effective surgical modality to lower IOP. The procedure appears to be most effective in surgically naïve primary congenital and juvenile glaucoma.
authors.affiliation: Department of Ophthalmology, University of Arizona Health Sciences Center, Tucson, AZ 85704, USA.
authors.forename: Jeffrey S
authors.initials: JS
authors.lastname: Kay
authors.forename: Robert
authors.initials: R
authors.lastname: Mitchell
authors.forename: Joseph
authors.initials: J
authors.lastname: Miller
mesh_terms: D000293:Adolescent; D000869:Anterior Eye Segment / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D005260:Female; D018463:Filtering Surgery / Q000379:methods*; D005902:Glaucoma, Open-Angle / Q000601:surgery*; D006801:Humans; D006871:Hydrophthalmos / Q000601:surgery*; D007223:Infant; D007429:Intraocular Pressure / Q000502:physiology; D008297:Male; D013536:Suture Techniques; D016896:Treatment Outcome; D055675:Viscosupplements / Q000008:administration & dosage*; D055815:Young Adult
chemical_list: D055675:Viscosupplements