title: [A preliminary report of a new technique: non-penetrating trabecular surgery].
abstract: OBJECTIVE
  To evaluate the clinical effect of nonpenetrating trabecular surgery with sodium hyaluronate gel implant in Primary Open-Angle Glaucoma(POAG).
  
  
  METHODS
  Twenty-four eyes of 22 patients with medically uncontrolled POAG were underwent nonpenetrating trabecular surgery with hyaluronate gel implant. The procedure was performed involing excising a deep-sclera tissue that flush with innerwall of Schlemm' s canal without opening the anterior chamber, then placing a 3 mm x 4.5 mm x 0.5 mm or 3.5 mm x 3.5 mm x 3.5 mm sodium hyaluronate gel implant under the scleral flap respectively. The postoperative Intraocular Pressure (IOP), Inflammation and fitering bleb were analysised. All of patients were undertaken ultrasound biomicroscopy (UBM) to evaluate the surgery site on postoperative 1-3 months. Mean follow-up was 3.9 +/- 2.2 months.
  
  
  RESULTS
  The IOP decreased from a mean preoperative value of 24.4 +/- 9.1 mmHg to a mean postoperative value of 15.1 +/- 3.7 mmHg (P < 0.01). The number of anti-glaucomatous medications by topically or systemically was reduced from preoperative sorts of 2.8 +/- 1.4 to postoperative sorts of 0.7 +/- 1.0 (P < 0.01). The visual acuity remained stable, 6 eyes had IOP elevated and 2 eyes had occured hyphema. The complications such as flat chamber, inflammation and detachment of choroid were not observed. The UBM showed that the hyaluronate gel implant wasn't degraded and a transparent liquid space was formed under the scleral flap in all of patients on postoperatively 1-3 month. The filtering blebs were formed in some patients.
  
  
  CONCLUSIONS
  Nonpenetrating trabecular surgery with hyaluronate gel implant can effectively lower IOP and reduce the number of anti-glaucomatous medications. No severe complications occured. With a simple postoperative nursing, it can be performed in clinic. It is proved to be a promising and new special technique to treat glaucoma.
authors.affiliation: Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China.
authors.forename: X
authors.initials: X
authors.lastname: Zhang
authors.forename: T
authors.initials: T
authors.lastname: Ye
authors.forename: J
authors.initials: J
authors.lastname: Ge
authors.forename: M
authors.initials: M
authors.lastname: Yu
authors.forename: X
authors.initials: X
authors.lastname: Chen
authors.forename: X
authors.initials: X
authors.lastname: Ji
authors.forename: J
authors.initials: J
authors.lastname: Ji
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D005782:Gels; D005902:Glaucoma, Open-Angle / Q000601:surgery*; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage*; D007429:Intraocular Pressure; D008297:Male; D008875:Middle Aged; D019736:Prostheses and Implants; D014130:Trabeculectomy / Q000379:methods; D016896:Treatment Outcome
chemical_list: D005782:Gels; D006820:Hyaluronic Acid