title: The effect of posterior sub-Tenon's capsule triamcinolone acetonide injection to that of pars plana vitrectomy for diabetic macular edema.
abstract: OBJECTIVE
  To compare the effect of posterior sub-Tenon's capsule triamcinolone acetonide (STTA) injection to that of pars plana vitrectomy (PPV) for diabetic macular edema (DME).
  
  
  METHODS
  The medical records of 50 patients (52 eyes) with DME were reviewed. Twenty-six eyes underwent STTA (20 mg) and the other 26 eyes underwent vitrectomy combined with cataract surgery. The central macular thickness (CMT), measured by optical coherence tomography, and best-corrected visual acuity (BCVA) were determined before and 1, 3, and 6 months after treatment.
  
  
  RESULTS
  The differences in the BCVA and the CMT between the STTA group and the PPV group were not significant before or at any time after the treatment. In both the STTA and PPV groups, there were significant differences between the pre-treatment CMT and BCVA at any time after treatment.
  
  
  CONCLUSIONS
  We recommend STTA injection for the treatment of DME.
authors.affiliation: Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chiba, Japan.
authors.forename: Sakiko
authors.initials: S
authors.lastname: Nonomura
authors.affiliation: Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chiba, Japan.
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Oshitari
authors.affiliation: Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chiba, Japan.
authors.forename: Miyuki
authors.initials: M
authors.lastname: Arai
authors.affiliation: Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chiba, Japan.
authors.forename: Eiju
authors.initials: E
authors.lastname: Sato
authors.affiliation: Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chiba, Japan.
authors.forename: Yoko
authors.initials: Y
authors.lastname: Takatsuna
authors.affiliation: Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chiba, Japan.
authors.forename: Takayuki
authors.initials: T
authors.lastname: Baba
authors.affiliation: Department of Ophthalmology and Visual Science, Chiba University Graduate School of Medicine, Chiba, Japan.
authors.forename: Shuichi
authors.initials: S
authors.lastname: Yamamoto
keywords: central macular thickness; diabetic macular edema; pars plana vitrectomy; posterior sub-Tenon’s capsule triamcinolone acetonide injection