title: Clinical results of selective laser trabeculoplasty in open-angle glaucoma in Japanese eyes: comparison of 180 degree with 360 degree SLT.
abstract: OBJECTIVE
  To evaluate the efficacy of selective laser trabeculoplasty (SLT) in the adjunctive treatment of medically diagnosed open-angle glaucoma and to compare the difference in intraocular pressure (IOP) lowering effects between 180-degree and 360-degree SLT.
  
  
  METHODS
  This study is a retrospective consecutive chart review of open-angle glaucoma patients who had undergone first-time SLT from January of 2005 to July of 2007. All the patients had primary open-angle glaucoma or pseudoexfoliation glaucoma under medical treatment and followed for at least 3 months after the procedure. The IOP reduction and treatment success were compared with the 2 treatment types.
  
  
  RESULTS
  Twenty-nine patients underwent 180-degree SLT (35 eyes) and 25 patients underwent 360-degree SLT (34 eyes). The average follow-up was 19.5 months (range 3 to 36) for 180-degree group and 17.9 months (range 3 to 36) for 360-degree group. During the follow-up period, the 360-degree SLT group showed significantly lower posttreatment IOP at each follow-up point relative to pretreatment IOP, and its IOP reduction rate stayed statistically higher than the 180-degree group. We found a positive correlation between the pretreatment IOP and the IOP reduction rate for 360-degree SLT. The lower the pretreatment IOP was, the lower IOP reduction rate became. A Kaplan-Meier survival analysis showed higher success rates after 360-degree SLT than after 180-degree SLT.
  
  
  CONCLUSIONS
  The 360-degree SLT was shown to be more effective than180-degree SLT for intermediateterm reduction in IOP of Japanese patients with open-angle glaucoma as an adjunctive treatment protocol.
authors.affiliation: Department of Ophthalmology, Osaka Medical College, Daigaku-machi, Takatsuki-shi, Osaka, Japan. mahosaru@iris.eonet.ne.jp
authors.forename: Maho
authors.initials: M
authors.lastname: Shibata
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Sugiyama
authors.forename: Osamu
authors.initials: O
authors.lastname: Ishida
authors.forename: Mari
authors.initials: M
authors.lastname: Ueki
authors.forename: Shota
authors.initials: S
authors.lastname: Kojima
authors.forename: Takaaki
authors.initials: T
authors.lastname: Okuda
authors.forename: Tsunehiko
authors.initials: T
authors.lastname: Ikeda
mesh_terms: D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D005902:Glaucoma, Open-Angle / Q000503:physiopathology / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology; D053685:Laser Therapy; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D008297:Male; D012189:Retrospective Studies; D014065:Tonometry, Ocular; D014130:Trabeculectomy; D016896:Treatment Outcome